- "Heptillion" redirects here. It is not to be confused with hepillion.
A sextillion is equal to 1021 in short scale, or 1036 in long scale.[1]
A sextillion dollars in 100 dollar bills in comparison to the United Kingdom and Ireland.
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.[2]
Aarex Tiaokhiao gave the name heptillion, referring to the value of this number.[3]
Wikia user NumLynx gave the name septasand for this number's short scale value.[4]
It is the smallest -illion number whose successor isn't squarefree.[5]
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.[6]
- You could fit 615 earths in a flat layer with an area of one sextillion square centimeters.[7]
- The SI prefix zetta- multiplies by one short-scale sextillion.
As a banknote denomination
Only the Hungarian pengő 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 | \(1\times10^{21}\) | |
| Arrow notation | \(10\uparrow21\) | |
| 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 | |
| BEAF | {10,21} | |
| Hyper-E notation | 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 | \(g_{\omega^{\omega2+1}}(10)\) | |
For long scale:
| Notation | Lower bound | Upper bound |
|---|---|---|
| Scientific notation | \(1\times10^{36}\) | |
| Arrow notation | \(10\uparrow36\) | |
| 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} | |
| Hyper-E notation | 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 | \(g_{\omega^{\omega3+6}}(10)\) | |
Sources
See also
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-)
100–900: centillion · unviginticent · unsexagintacent · ducent · trecent · duotrigintatrecent · quadringent · quingent · sescent · septuagintisescent · septingent · octingent · nongent
1,000–1024: millillion · dumill · dumillinonagintanongent · trimill · trimilliduotrigintatrecent · trimillisexoctogintaoctingent · quadrimill · quadrimilliquattuordecicent · quinmill · sexmill · septimill · octimill · nonimill · myr · decimilliquinsexagintasescent · dumyr · unquadragintamilliunquinquagintacent · centimill · micr · nan · pic · femt · att · zept · yoct
