Googol

*Not to be confused with goggol.*
A **googol** (also called a **gargogol**, a **hundredplex**, or a **decaduotrigintillion**) is a well-known large number, equal to 10100, or one followed by 100 zeros. It is also called **ten duotrigintillion** in the short scale or **ten sexdecilliards** in long scale. It is 101 digits long. It is also a gogol squared. It is a gogol gogols.

Coined in the year 1920, it has become very famous as a generic example of a large number , and is what the field of googology is named after.

## History

The term was coined by Edward Kasner's nine-year-old nephew, Milton Sirotta in 1920. It was first published in a book co-written by Kasner *Mathematics and the Imagination* in the 1940's. The name was most likely influenced by name of the title character of the American comic strip *Barney Google and Snuffy Smith*, which was very popular at the time. *Barney Google*'s name was in turn inspired by Vincent Vickers' 1913 children's book *The Google Book*.

Googly-eye-fish-market.jpg"Googly eyes" are etymologically related, likely originating from the novelty song "Barney Google" based on the comic strip.800px-The Google monster.jpg*The Google* prowled the land of *Poggles* and *Swanks* at night.
## Properties

The googol is equal to ten duotrigintillion in the short scale, or ten sexdecilliard in the long scale. Googol can be expressed as {10,100} in BEAF, or as E100, E100#1, or E2#2 in Hyper-E notation.

Sbiis Saibian has given the alternative name **guppyding**.

Aarex Tiaokhiao coined the names **unoohol**, **100-noogol**, and **booiolplex** for this number.

Username5243 coined the name **goodolplex** for this number, and it's equal to 10[1]10[1]2 in Username5243's Array Notation.

SuperJedi224 coined the name **decigol** for this number.

## Size

There are a mere 1080 elementary particles in the observable universe, so googol has little use when measuring real-world quantities. However. it is still much less than the number of Planck volumes in the observable universe (about 10183), so it still has some real-world meaning. Sbiis Saibian showed that a googol particles in a tightly packed sphere would still have a diameter of 5.6 quadrillion meters, or half a light-year.

A cube with edge length 3.5cm contains about a googol Planck volumes.

Googol is comparable to some numbers produced by combinatorics. For example, 70 factorial (the number of ways 70 distinct objects can be arranged in a row) is about 20% larger than 10100.

A googol seconds is about a sexvigintillion (1081) times the estimated age of the universe. A googol angstroms is approximately 100 trevigintillion light-years.

It takes 317 novemvigintillion years to count to a googol one integer at a time. Counting by googols, half googols, or duotrigintillions, of course, one could count there faster but it is not considered kosher in hide-and-seek or googology.

The time it takes for the black hole TON 618 to fully decay due to Hawking radiation is approx. a googol years.

## Cultural impact

 File:1b04530916a75251925b910bd4af8441.jpg
The definition of googol, googolplex, and similar numbers eventually branched into the field of googology, the study of, nomenclature of, and creation of notations for large numbers.

Larry Page and Sergey Brin, the founders of the Google search engine, named their company after a pun on googol, as their goal is to cache the mass of data that makes up the World Wide Web.

Googology Wiki has a tongue-in-cheek goal to reach 10100 articles, which is probably impossible.

## Pronunciation

 File:Googol.jpg
File:Googol.ogg

## See also

* Gooprol
* Googolteen
* Googolty
* Googo-
* Googolbang

## Sources

1. ↑ Googol (from Wolfram Mathworld)
2. ↑ https://en.wikipedia.org/wiki/Googol#Concept
3. ↑ http://blogoscoped.com/googlebook/
4. ↑ [1]
5. ↑ 4.3.2 - Hyper-E Numbers - Large Numbers
6. ↑ Part 1 (LAN) - Aarex Googology
7. ↑ Part 1 - My Large Numbers
8. ↑ Bingol Series - Almost Infinite
9. ↑ Plexing & The Googol Series - Large Numbers
10. ↑ [2]
11. ↑ Don N. Page. Particle emission rates from a black hole: Massless particles from an uncharged, nonrotating hole
12. ↑ [3]

**Googol** and related numbers

**Googol-*n*-plex:** **googol** · googolplex · googolduplex · googoltriplex · -quadriplex · -quintiplex · -sextiplex · -septiplex · -octiplex · -noniplex · -deciplex · -vigintiplex · -trigintiplex · -quadragintiplex · -quinquagintiplex · -sexagintiplex · -septuagintiplex · -octogintiplex · -nonagintiplex · -centiplex
**Googol-103*n*-plex:** googolmilliplex · -micriplex · -naniplex · -piciplex · -femtiplex · -attiplex · -zeptiplex · -yoctiplex · -xoniplex · -veciplex · -meciplex
**Bowers' extensions:** giggol · gaggol · geegol · boogol · goobol · more...
**Saibian's extensions:** googolgong · grangol · greagol · gigangol · more...
**Cockburn's extensions:** gargoogolplex · fzgoogolplex · fugagoogolplex
**Miscellany:** googolteen · googolty · great googol(plex) · googolbang · zootzoot · zootzootplex · zootzootzootplex

Template:Saibian's guppy regiment numbers

Numbers by Username5243

**Googol Regiment**Niloogol · Niloogolplex · Niloogolduplex · Niloogoltriplex · Niloogolquadriplex · Niloogolquintiplex · Niloogolsextiplex · Niloogolseptiplex · Niloogoloctiplex · Niloogolnoniplex · Goonol · Goodol · Gootol · Gooquol · Gooqnol · Goosol · Goospol · Gooctol · Goonvol· Goodcol · Goovol · Gooqtol · Gootirol · Gooqrol · Goohfol · Gooxtol · Goostol · Gootgol · Goontol · Gooducol · Gooqnicol · Goomol · Goomyrol · Binary-Googol · Binary-Goonol · Binary-Goodol · Binary-Gootol · Binary-Gooquol · Binary-Gooqnol · Binary-Goovol · Binary-Gooqtol · Binary-Gootirol · Binary-Goohfol · Binary-Goomol · Binary-Goomyrol · Ternary-Googol · Ternary-Goonol · Ternary-Goodol · Ternary-Gooqnol · Ternary-Goodcol · Ternary-Gooqtol · Ternary-Goohfol · Ternary-Goomol · Ternary-Goomyrol · Quaternary-Googol · Quinary-Googol · Senary-Googol · Septary-Googol · Octal-Googol · Octal-Goonol · Octal-Goodol · Octal-Gooqnol · Octal-Goodcol · Octal-Gooqtol · Octal-Goohfol · Octal-Goomol · Octal-Goomyrol · Novary-Googol · Undecimal-Googol · Duodecimal-Googol · Hexadecimal-Googol · Hexadecimal-Goonol · Hexadecimal-Gooqnol · Hexadecimal-Goodcol · Hexadecimal-Goohfol · Hexadecimal-Goomol · Hexadecimal-Goomyrol · Vigesimal-Googol · Trigesimal-Googol · Sexagesimal-Googol · Googolnilex · Niloogolunex · Goonolplex · **Goodolplex** · Gootolplex · Gooquolplex · Gooqnolplex · Goosolplex · Goospolplex · Gooctolplex · Goonvolplex · Goodcolplex · Goovolplex · Gooqtolplex · Goohfolplex · Gooducolplex · Goomolplex · Goomyrolplex · Binary-Googolplex · Binary-Goonolplex · Binary-Gooqnolplex · Binary-Goodcolplex · Binary-Goohfolplex · Binary-Goomolplex · Ternary-Googolplex · Quaternary-Googolplex · Quinary-Googolplex · Octal-Googolplex · Duodecimal-Googolplex · Hexadecimal-Googolplex · Vigesimal-Googolplex · Sexagesimal-Googolplex · Googolduplex · Gooqnolduplex · Goodcolduplex · Goomolduplex · Goomyrolduplex · Binary-Googolduplex · Hexadecimal-Googolduplex · Googoltriplex · Goomoltriplex · Googolquadriplex · Googolquintiplex · Googolsextiplex · Googolseptiplex · Googoloctiplex · Googolnoniplex · Googoldeciplex
**Doogol Regiment**
Doogol · Doonol · Doodol · Dootol · Dooquol · Dooqnol · Doosol · Doospol · Dooctol · Doonvol · Doodcol · Doovol · Dooqtol · Dootrol · Dooqrol · Doohfol · Dooxtol · Doostol · Dootgol · Doontol · Dooducol · Dooqnicol · Doomol · Doomyrol · Binary-Doogol · Binary-Doonol · Binary-Doodol · Binary-Dootol · Binary-Dooquol · Binary-Dooqnol · Binary-Doodcol · Binary-Doovol · Binary-Doohfol · Binary-Doomol · Binary-Doomyrol · Ternary-Doonol · Ternary-Doodol · Ternary-Dooqnol · Ternary-Doodcol · Ternary-Doogol · Ternary-Doomol · Quaternary-Doogol · Quinary-Doogol · Octal-Doogol · Octal-Doonol · Octal-Dooqnol · Octal-Doodcol · Octal-Doomol · Duodecimal-Doogol · Hexadecimal-Doogol · Vigesimal-Doogol · Doogolunex · Doogolduunex · Doogoltriunex · Doogolquadriunex · Googolduex · Goonolduex · Goodolduex · Gooqnolduex · Goodcolduex · Goovolduex · Goohfolduex · Goomolduex · Goomyrolduex · Binary-Googolduex · Binary-Goodcolduex · Binary-Goomolduex · Ternary-Googolduex · Octal-Googolduex · Hexadecimal-Googolduex · Googolplexiduex · Gooqnolplexiduex · Goodcolplexiduex · Goomolplexiduex · Binary-Googolplexiduex · Googolduplexiduex · Goodcolduplexiduex · Googoltriplexiduex · Googolquadriplexiduex · Googolquintiplexiduex · Doogolplex · Doogolduex · Dooqnolplex · Doodcolplex · Doovolplex · Dooqtolplex · Doohfolplex · Doomolplex · Doomyrolplex · Binary-Doogolplex · Binary-Doodcolplex · Binary-Doomolplex · Ternary-Doogolplex · Octal-Doogolplex · Hexadecimal-Doogolplex · Googolduduex · Goodcolduduex · Goomolduduex · Binary-Googolduduex · Googolplexiduduex · Goodcolplexiduduex · Googolduplexiduduex · Googoltriplexiduduex · Googolquadriplexiduduex · Doogolduplex · Doodcolduplex · Doomolduplex · Doomyrolduplex · Binary-Doogolduplex · Googolplexitriduex · Googolduplexitriduex · Doogoltriplex · Googolquadriduex · Googolplexiquadriduex · Doogolquadriplex · Googolquintiduex · Doogolquintiplex · Doogolsextiplex · Doogolseptiplex · Doogoloctiplex · Doogolnoniplex · Doogoldeciplex
**Toogol Regiment**
Toogol · Toonol · Toodol · Tootol · Tooquol · Tooqnol · Toosol · Toospol · Tooctol · Toonvol · Toodcol · Toovol · Tooqtol · Tootrol · Tooqrol · Toohfol · Tooxtol · Toostol · Toogtol · Toontol · Tooducol · Toomol · Toomyrol · Binary-Toogol · Binary-Toodol · Binary-Tootol · Binary-Tooquol · Binary-Tooqnol · Binary-Toodcol · Binary-Toohfol · Binary-Toomol · Ternary-Toogol · Ternary-Toodol · Ternary-Tooqnol · Ternary-Toodcol · Ternary-Toomol · Quaternary-Toogol · Octal-Toogol · Octal-Toodcol · Duodecimal-Toogol · Hexadecimal-Toogol · Toogolunex · Toogolduunex · Toogolduex · Toogolplexiduex · Toogolduexiplex · Toogolduduex · Googoltrex · Goonoltrex · Goodoltrex · Goodoltrex · Gootoltrex · Gooquoltrex · Gooqnoltrex · Goosoltrex · Goospoltrex · Gooctoltrex · Goonvoltrex · Goodcoltrex · Goovoltrex · Gooqtoltrex · Gootiroltrex · Gooqroltrex · Goohfoltrex · Gooxtoltrex · Goostoltrex · Gootgoltrex · Goontoltrex · Goomoltrex · Goomyroltrex · Binary-Googoltrex · Ternary-Googoltrex · Octal-Googoltrex · Hexadecimal-Googoltrex · Googolplexitrex · Goodcolplexitrex · Goomolplexitrex · Binary-Googolplexitrex · Googolduplexitrex · Googoltriplexitrex · Googolquadriplexitrex · Doogoltrex · Dooqnoltrex · Doodcoltrex · Doomoltrex · Doomyroltrex · Binary-Doogoltrex · Octal-Doogoltrex · Hexadecimal-Googoltrex · Googolduexitrex · Goodcolduexitrex · Goomolduexitrex · Binary-Googolduexitrex · Googolplexiduexitrex · Googolduplexiduexitrex · Doogolplexitrex · Doodcolplexitrex · Doomolplexitrex · Binary-Doogolplexitrex · Googolduduexitrex · Googolplexiduduexitrex · Doogolduplexitrex · Googoltriduexitrex · Doogoltriplexitrex · Doogolquadriplexitrex · Toogolplex · Toogoltrex · Toonolplex · Tooqnolplex · Toodcolplex · Toomolplex · Toomyrolplex · Binary-Toogolplex · Octal-Toogolplex · Googoldutrex · Goodcoldutrex · Googolplexidutrex · Googolduplexidutrex · Doogoldutrex · Doodcoldutrex · Googolduexidutrex · Doogolplexidutrex · Doogolduplexitrex · Toogolduplex · Toodcolduplex · Toomolduplex · Binary-Toogolduplex · Googoltritrex · Googolplexitritrex · Doogoltritrex · Googoldexidutrex · Doogolplexitritrex · Toogoltriplex · Googolquadritrex · Doogolquadritrex · Toogolquadriplex · Toogolquintiplex · Toogolsextiplex · Toogolseptiplex · Toogoloctiplex · Toogolnoniplex · Toogoldeciplex
**Tetoogol Regiment**
Tetoogol · Tetoonol · Tetoodol · Tetootol · Tetooquol · Tetooqnol · Tetoosol · Tetoospol · Tetooctol · Tetoonvol · Tetoodcol · Tetoovol · Tetooqtol · Tetootrol · Tetoohfol · Tetooducol · Tetoomol · Tetoomyrol · Binary-Tetoogol · Binary-Tetootol · Binary-Tetooquol · Binary-Tetooqnol · Binary-Tetoodcol · Binary-Tetoomol · Ternary-Tetoogol · Quaternary-Tetoogol · Octal-Tetoogol · Octal-Tetoodcol · Duodecimal-Tetoogol · Hexadecimal-Tetoogol · Tetoogolunex · Tetoogolduex · Tetoogoltrex · Googolquadrex · Goonolquadrex · Goodcolquadrex · Goomolquadrex · Goomyrolquadrex · Binary-Googolquadrex · Octal-Googolquadrex · Hexadecimal-Googolquadrex · Googolplexiquadrex · Goodcolplexiquadrex · Goomolplexiquadrex · Googolduplexiquadrex · Googoltriplexiquadrex · Doogolquadrex · Doodcolquadrex · Doomolquadrex · Doomyrolquadrex · Binary-Doogolquadrex · Octal-Doogolquadrex · Toogolquadrex · Toodcolquadrex · Toomolquadrex · Toomyrolquadrex · Binary-Toogolquadrex · Octal-Toogolquadrex · Hexadecimal-Toogolquadrex · Googoltrexiquadrex · Googolplexitrexiquadrex · Doogoltrexiquadrex · Googolduexiquadrex · Doogolplexitrex · Toogolplexiquadrex · Toodcolplexiquadrex · Toomolplexiquadrex · Googoldutrexiquadrex · Doogoldutrexiquadrex · Toogolduplexiquadrex · Toogoltriplexiquadrex · Tetoogolplex · Tetoonolplex · Tetoodcolplex · Tetoomolplex · Tetoomyrolplex · Binary-Tetoogolplex · Octal-Tetoogolplex · Googolduquadrex · Googolplexiduquadrex · Doogolduquadrex · Googolduexiduquadrex · Doogolplexiquadrex · Toogolduquadrex · Googoltrexiduquadrex · Doogoltrexiduquadrex · Toogolplexiduquadrex · Tetoogolduplex · Tetoodcolduplex · Tetoomolduplex · Binary-Tetoogolduplex · Googoltriquadrex · Doogoltriquadrex · Toogoltriquadrex · Tetoogoltriplex · Googolquadriquadrex · Tetoogolquadriplex · Tetoogolquintiplex · Tetoogolsextiplex · Tetoogolseptiplex · Tetoogoloctiplex · Tetoogolnoniplex · Tetoogoldeciplex
**Penoogol Regiment**
Penoogol · Penoonol · Penoodol · Penootol · Penooquol · Penooqnol · Penoosol · Penoospol · Penooctol · Penoonvol · Penoodcol · Penoovol · Penooqtol · Penootrol · Penoohfol · Penooducol · Penoomol · Penoomyrol · Binary-Penoogol · Binary-Penootol · Binary-Penooquol · Binary-Penooqnol · Binary-Penoodcol · Binary-Penoomol · Ternary-Penoogol · Quaternary-Penoogol · Octal-Penoogol · Duodecimal-Penoogol · Hexadecimal-Penoogol · Penoogolunex · Penoogolduex · Penoogoltrex · Penoogolquadrex · Googolquinex · Goonolquinex · Goodcolquinex · Goomolquinex · Goomyrolquinex · Binary-Googolquinex · Octal-Googolquinex · Hexadecimal-Googolquinex · Googolplexiquinex · Goodcolplexiquadrex · Doogolquinex · Toogolquinex · Tetoogolquinex · Penoogolplex · Penoonolplex · Penoodcolplex · Penoomolplex · Penoomyrolplex · Binary-Penoogolplex · Octal-Penoogolplex · Googolduquinex · Googolplexiduquinex · Doogolduquinex · Googolduexiduquinex · Doogolplexiquinex · Toogolduquinex · Googoltrexiduquinex · Doogoltrexiduquinex · Toogolplexiduquinex · Googolquadrexiduquinex · Doogolquadrexiduquinex · Toogolquadrexiduquinex · Tetoogolquadrexiduquinex · Penoogolduplex · Penoodcolduplex · Penoomolduplex · Binary-Penoogolduplex · Googoltriquinex · Doogoltriquinex · Toogoltriquinex · Tetoogoltriquinex · Penoogoltriplex · Penoogolquadriplex · Penoogolquintiplex · Penoogolsextiplex · Penoogolseptiplex · Penoogoloctiplex · Penoogolnoniplex · Penoogoldeciplex
**2-entry series**
Kiloogol · Kil-Googol · Kil-Doogol · Kil-Toogol · Kil-Tetoogol · Dukiloogol · Dukil-Googol · Dukil-Doogol · Trukiloogol · Tetrukiloogol · Pentukiloogol · Hexukiloogol · Heptukiloogol · Octukiloogol · Ennukiloogol · Dekukiloogol
**Linear series**
Megoogol · Meg-Googol · Meg-Doogol · Meg-Kiloogol · Meg-Kil-Googol · Meg-Dukiloogol · Meg-Trukiloogol · Dumegoogol · Dumeg-Googol · Dumeg-Kiloogol · Dumeg-Dukiloogol · Trumegoogol · Trumeg-Kiloogol · Tetrumegoogol · Pentumegoogol · Gigoogol · Gig-Googol · Gig-Kiloogol · Gig-Megoogol · Dugigoogol · Trugigoogol · Teroogol · Duteroogol · Petoogol · Dupetoogol · Ectoogol · Duectoogol · Zettoogol · Duzettoogol · Yottoogol · Xennoogol · Wekoogol · Vundoogol · Udoogol · Tredoogol · Sortoogol · Rintoogol · Quexoogol · Peptoogol · Ochoogol · Nenoogol · Mingoogol · Limoogol · Kamoogol · Janeoogol · Ianoogol · Hevoogol · Gexoogol · Fetoogol · Eottoogol · Devoogol · Cicoogol · Bonoogol · Auvoogol · Ziroogol · Yuroogol
**Two-row series**
Linoogol · Lin-Googol · Lin-Doogol · Lin-Kiloogol · Lin-Megoogol · Lin-Gigoogol · Dulinoogol · Dulin-Googol · Trulinoogol · Kilulinoogol · Kilulin-Googol · Kilulin-Linoogol · Kilulin-Dulinoogol · Dukilulinoogol · Megulinoogol · Megulin-Kilulinoogol · Dumegulinoogol · Gigulinoogol · Terulinoogol · Petulinoogol · Ectulinoogol · Zettulinoogol · Yottulinoogol · Xennulinoogol · Wekulinoogol · Vundulinoogol · Udulinoogol · Tredulinoogol · Sortulinoogol · Rintulinoogol · Quexulinoogol · Peptulinoogol · Ochulinoogol · Nenulinoogol · Mingulinoogol

Template:Saibian's Hyper-E numbers
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