Quadrillion

A **quadrillion** is equal to 1015 in America, or 1024 in France and Germany.

 File:Quadrillion Dollars.jpg   File:Small fry.png
In the long scale, 1015 is called billiard (not to be confused with a game), which is commonly used in France and Germany.

Written out in decimal form quadrillion (in the short scale) is:

Template:Digits

In long scale:

Template:Digits

This number is also called **pentillion** in Russ Rowlett's Greek-based naming system.

Aarex Tiaokhiao gave the name **petillion** and Sbiis Saibian gave the names **small fry**, **guppycrumb**, and **minnowspeck**, referring to the short scale value of this number.

Aarex Tiaokhiao also calls this number (in short scale) **qndoocol** or **15-noogol**.

This number (in short scale) is known as a **padma** in the Indian counting system.

## Decimal

* 1,000,000,000,000,000 - short scale
* 1,000,000,000,000,000,000,000,000 - long scale

## Examples

* The Niagara Falls use up a quadrillion gallons in a little over 210 years.
* The Great Lakes have a volume of about 6 quadrillion gallons.
* The universe is about 473 quadrillion seconds old.
* It is about 586 quadrillion miles from one end of the Milky Way to the other.
* The SI prefix peta- multiplies by one quadrillion.
* 1,000,000,000,000,000 to 10,000,000,000,000,000 (1015 to 1016) – The estimated total number of ants on Earth alive at any one time (their biomass is approximately equal to the total biomass of the human race).
* 9,007,199,254,740,992 (253) – number until which all integer values can exactly be represented in IEEE double precision floating-point format.
* 48,988,659,276,962,496 is the fifth taxicab number.
* In Isaac Asimov's Galactic Empire, in what we call 22,500 CE there are 25,000,000 different inhabited planets in the Galactic Empire, all inhabited by humans in Asimov's "human galaxy" scenario, each with an average population of 2,000,000,000, thus yielding a total Galactic Empire population of approximately 50,000,000,000,000,000.
* There are 7.205759×1016 different possible keys in the obsolete 56-bit DES symmetric cipher.

## As a banknote denomination

 File:QuadrillionBanknote.jpg
Only the Template:W had banknotes with this number in the denomination.

## Gallery

10 Quadrillion Dollars.jpg10 quadrillion dollars in 25 piles of 100 dollar bills in comparison to the Empire State Building100 Quadrillion Dollars.jpg100 quadrillion dollars in 25 piles of 100 dollar bills in comparison to the Empire State Building
## Sources

1. ↑ Quadrillion at Wolfram MathWorld
2. ↑ Names for Large Numbers
3. ↑ Full list of my illion, Aarex Large Numbers
4. ↑ Hyper-E Notation, Large Numbers
5. ↑ Part 1 (LAN) - Aarex Googology
6. ↑ [1]
7. ↑ Saibian, Sbiis. 2.1.4 - Everyday Large Numbers for a Modern World. Retrieved on June 11, 2013.

## See also

* quadryllion

Standard -illion numbers 103n + 3 (106n)

Main article: -illion**0-9:** million · billion · trillion · **quadr** · quint · sext · sept · oct · non
**10-19:** decillion · undec · duodec · tredec · quattuordec · quindec · sexdec · septendec · octodec · novemdec
**20-29:** vigintillion · unvigint · duovigint · trevigint · quattuorvigint · quinvigint · sexvigint · septenvigint · octovigint · novemvigint
**30-39:** trigintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**40-49:** quadragintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**50-59:** quinquagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**60-69:** sexagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**70-79:** septuagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**80-89:** octogintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**90-99:** nonagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**100-109:** centillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**110-119:** decicentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**120-129:** viginticentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**130-139:** trigintacentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**140-149:** quadragintacentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**150-159:** quinquagintacentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**160-169:** sexagintacentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**170-179:** septuagintacentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**180-189:** octogintacentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**190-199:** nonagintacentillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
**200-999:** ducent · trecent · duotrigintatrecent · quadringent · quingent · sescent · septuagintasescent · septingent · octingent · nongent
**1,000-1024:** millillion · dumill · trimill · quadrimill · quadrimilliquattuordecicent · quinmill · sexmill · septimill · octimill · nonimill · myr · dumyr · tremyr · centimill · micr · nan · pic · femt · att · zept · yoct

fr:Quadrillion