Sextillion

A sextillion is equal to 1021 in short scale, or 1036 in long scale.Merriam-Webster Dictionary SextillionLarousse (French dictionary) Sextillion (source for long scale in French)Conway and Guy. The Book of Numbers. Copernicus. 1995. ISBN 978-0387979939 p.14Sextillion at Wolfram MathWorld It is 22 digits long in short scale, or 37 digits long in long scale.
Written out in decimal form sextillion (in the short scale) is:
In long scale:
In the long scale, 1021 is called trilliard, which is commonly used in France and Germany.
This number is also called heptillion in Russ Rowlett's Greek-based naming system.Russ Rowlett　Names for Large Numbers　Archived 2006-01-10.
Aarex Tiaokhiao gave the name heptillion, referring to the value of this number.Aarex Tiaokhiao's illion numbers
Wikia user NumLynx gave the name septasand for this number's short scale value.
== Decimal ==
*1,000,000,000,000,000,000,000 - short scale
*1,000,000,000,000,000,000,000,000,000,000,000,000 - long scale
== Examples ==
*The volume of the earth is about 1.085 sextillion cubic meters.
*The earth has a mass of about 5.98 sextillion metric tons.
*There are about 6 sextillion cups of water in all the oceans of the world.
*The distance between one end of the universe and the other may be about 87.9 sextillion miles or 141 sextillion kilometers.2.1.5 - Larger Numbers in Science - Large Numbers by Sbiis Saibian
*You could fit 615 earths in a flat layer with an area of one sextillion square centimeters.Almost Infinite
*The SI prefix zetta- multiplies by one short-scale sextillion.
*There are 1 sextillion grains of sand on Earth.Youtube - Beyond Infinity Number Comparison
*There are about 1 sextillion atoms in the body of a flea.1.3 Sizes of the -illions - Pointless Large Number Stuff#One sextillion
*The density of a neutron star is about a sextillion grams per cubic meter.
== As a banknote denomination ==
Only the had banknotes with this number in the denomination, but they were never issued; in fact, it was the highest banknote denomination ever printed.
== Approximations ==
For short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{21}\) 	\(1\times10^{21}\)
Arrow notation 	\(10\uparrow21\) 	\(10\uparrow21\)
Steinhaus-Moser Notation 	17[3] 	18[3]
Copy notation 	9[21] 	10[11]
Taro's multivariable Ackermann function	A(3,66) 	A(3,67)
Pound-Star Notation 	#*(100)*10 	#*(100)*10
BEAF 	{10,21} 	{10,21}
Hyper-E notation 	E21 	E21
Bashicu matrix system 	(0)(0)(0)[421] 	(0)(0)(0)[422]
Hyperfactorial array notation 	21! 	22!
Fast-growing hierarchy 	\(f_2(63)\) 	\(f_2(64)\)
Hardy hierarchy 	\(H_{\omega^2}(63)\) 	\(H_{\omega^2}(64)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega2+1}}(10)\)	\(g_{\omega^{\omega2+1}}(10)\)
For long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{36}\) 	\(1\times10^{36}\)
Arrow notation 	\(10\uparrow36\) 	\(10\uparrow36\)
Steinhaus-Moser Notation 	25[3] 	26[3]
Copy notation 	9[36] 	1[37]
Taro's multivariable Ackermann function	A(3,116) 	A(3,117)
Pound-Star Notation 	#*(3,7,1,0,1)*6 	#*(2,6,1,3,4)*5
BEAF 	{10,36} 	{10,36}
Hyper-E notation 	E36 	E36
Bashicu matrix system 	(0)(0)(0)[31622] 	(0)(0)(0)[31623]
Hyperfactorial array notation 	32! 	33!
Fast-growing hierarchy 	\(f_2(112)\) 	\(f_2(113)\)
Hardy hierarchy 	\(H_{\omega^2}(112)\) 	\(H_{\omega^2}(113)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega3+6}}(10)\)	\(g_{\omega^{\omega3+6}}(10)\)
== Sources ==
== See also ==
Category:Numbers
Category:Banknote denominations
Category:Class 2
Category:Illion
Category:Numbers with 7 to 29 digits
Category:Numbers with 30 to 100 digits
Category:Tier 1 -illion numbers
Category:Numbers with peer-reviewed source
fr:Sextillion