Googol

*Not to be confused with goggol.*
 File:Googol.jpeg
**Googol** is a well-known large number, equal to 10100 or 1 followed by 100 zeroes. It is also called "ten duotrigintillion" using the short scale. It is the namesake of googology.

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 and the search engine Google are named after.

## History

 File:Googly.jpg
The term was coined by Edward Kasner's nine-year-old nephew, Milton Sirotta in 1920. It was perhaps first published in *New Names in Mathematics* (1937). The name was most likely influenced by name of the title character of the American comic strip *Template:W*, which was very popular at the time. *Barney Google*'s name was in turn inspired by Vincent Vickers' 1939 children's book *Template:W*.

## 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. He also calls it **cyplex**, using André Joyce's naming system.

BlankEntity calls this number **Blag**.

DeepLineMadom calls the number **troogol**, and is equal to 10[3]100 in DeepLineMadom's Array Notation. It should not be confused with the much larger Bowers' troogol.

## Size

There are a mere 1080 elementary particles in the Template:W, 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 (which is about 10185), 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 35mm contains about a googol Planck volumes.

Googol is comparable to some numbers produced by Template:W. 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 approximately 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 about a googol years.

 File:What Will Happen In 1 GOOGOL Years From Now?

## 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.

Googol was the subject of the £1 million question in a 2001 episode of the British version of the quiz show *Who Wants To Be A Millionaire?*, where contestant Charles Ingram cheated his way to the jackpot with the assistance of an aide in the audience.

 File:Googol.jpg
## See also

* Gooprol
* Googolteen
* Googolty
* Googo-
* Googolbang

## Sources

1. ↑ Googol (from Wolfram Mathworld)
2. ↑ https://en.wikipedia.org/wiki/Googol#Concept
3. ↑ [1]
4. ↑ 4.3.2 - Hyper-E Numbers - Large Numbers
5. ↑ Part 1 (LAN) - Aarex GoogologyTemplate:Dead link
6. ↑ Part 1 - My Large Numbers
7. ↑ Bingol Series - Almost Infinite
8. ↑ BlankEntity's Googology Site
9. ↑ DeepLineMadom's googology - Numbers I've coined (Retrieved 4 May 2022)
10. ↑ Plexing & The Googol Series - Large Numbers
11. ↑ [2]
12. ↑ Don N. Page. Particle emission rates from a black hole: Massless particles from an uncharged, nonrotating hole
13. ↑ What Will Happen In 1 GOOGOL Years From Now?
14. ↑ Google, Corporate Information archived at 2011-04-20

Template:Googol extensions
Template:Saibian's guppy regiment numbers
Template:Numbers by Username5243
Template:Saibian's Hyper-E numbers
Template:BySuperJedi224
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