Quadrillion

A quadrillion is equal to 1015 in America, or 1024 in France and Germany.Cambridge Dictionary QuadrillionLarousse (French dictionary) Quadrillion (source for long scale in French)Conway and Guy. The Book of Numbers. Copernicus. 1995. ISBN 978-0387979939 p.16Quadrillion at Wolfram MathWorld
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:
In long scale, it is:
== Alternative names ==
This number is also called pentillion in Russ Rowlett's Greek-based naming system.Russ Rowlett　Names for Large Numbers　Archived 2006-01-10.
Aarex Tiaokhiao gave the name petillionFull list of my illion, Aarex Large Numbers and Sbiis Saibian gave the names small fry, guppycrumb, and minnowspeck,Hyper-E Notation, Large Numbers referring to the short scale value of this number.
Wikia user NumLynx gave the name quintisand for this number's short scale value.
Aarex Tiaokhiao also calls this number (in short scale) qndoocol or 15-noogol.Part 1 (LAN) - Aarex Googology
BlankEntity calls this number Jookol.BlankEntity's Googology Site
This number (in short scale) is known as a padma (पद्म) in the .Teachoo Indian and International System of Numerationअरब, खरब, नील, पद्म, शंख में कितने होते हैं शून्य? जानें भारतीय अंक प्रणाली (How many zeros are there in Arab, Kharab, Neel, Padma, and Shankh? Learn about the Indian numbering system.) in Hindi
==Approximations==
For short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{15}\) 	\(1\times10^{15}\)
Arrow notation 	\(10\uparrow15\) 	\(10\uparrow15\)
Steinhaus-Moser Notation 	13[3] 	14[3]
Copy notation 	9[15] 	10[8]
Taro's multivariable Ackermann function	A(3,46) 	A(3,47)
Pound-Star Notation 	#*(2,2,3)*5 	#*(2,2,1)*6
BEAF 	{10,15} 	{10,15}
Bashicu matrix system 	(0)(0)[5623] 	(0)(0)[5624]
Hyperfactorial array notation 	17! 	18!
Fast-growing hierarchy 	\(f_2(44)\) 	\(f_2(45)\)
Hardy hierarchy 	\(H_{\omega^2}(44)\) 	\(H_{\omega^2}(45)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega+5}}(10)\)	\(g_{\omega^{\omega+5}}(10)\)
For long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{24}\) 	\(1\times10^{24}\)
Arrow notation 	\(10\uparrow24\) 	\(10\uparrow24\)
Chained arrow notation 	\(10\rightarrow24\) 	\(10\rightarrow24\)
Steinhaus-Moser Notation 	18[3] 	19[3]
Copy notation 	9[24] 	1[25]
Taro's multivariable Ackermann function	A(3,76) 	A(3,77)
Pound-Star Notation 	#*(1,2,3,3)*5 	#*(2,2,3,3)*5
BEAF 	{10,24} 	{10,24}
Hyper-E notation 	E24 	E24
Bashicu matrix system 	(0)(0)(0)[1000] 	(0)(0)(0)[1000]
Hyperfactorial array notation 	24! 	25!
Bird's array notation 	{10,24} 	{10,24}
Fast-growing hierarchy 	\(f_2(73)\) 	\(f_2(74)\)
Hardy hierarchy 	\(H_{\omega^2}(73)\) 	\(H_{\omega^2}(74)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega2+4}}(10)\)	\(g_{\omega^{\omega2+4}}(10)\)
== 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.
*The average man creates about 13 quadrillion sperm cells in a lifetime.
*There are 7.205759×1016 different possible keys in the obsolete 56-bit DES symmetric cipher.
*Very few villains have killed quadrillions of people.
=== As a banknote denomination ===
Only the had banknotes with this number in the denomination.
== Gallery ==
10 Quadrillion Dollars.jpg|10 quadrillion dollars in 25 piles of 100 dollar bills in comparison to the Empire State Building
100 Quadrillion Dollars.jpg|100 quadrillion dollars in 25 piles of 100 dollar bills in comparison to the Empire State Building
== Sources ==
== See also ==
Category:Numbers
Category:Banknote denominations
Category:Base Illion
Category:Class 2
Category:Illion
Category:Numbers with 7 to 29 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers
Category:Numbers with peer-reviewed source
fr:Quadrillion
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