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A sextillion is equal to 1021 in America, or 1036 in France and Germany.[1]
Sextillion Dollars

A sextillion dollars in 100 dollar bills in comparison to the United Kingdom and Ireland.

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

1000000000000000000000

In long scale:

1000000000000000000000000000000000000

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]

It is the smallest -illion number whose successor isn't squarefree.[4]

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.[5]
  • You could fit 615 earths in a flat layer with an area of one sextillion square centimeters.[6]
  • The SI prefix zetta- multiplies by one short-scale sextillion.

As a banknote denomination

HungarianSextillionBanknote

An example of the Hungarian pengo.

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

  1. Sextillion at Wolfram MathWorld
  2. Names for Large Numbers
  3. Aarex Tiaokhiao's illion numbers
  4. [1]
  5. 2.1.5 - Larger Numbers in Science - Large Numbers by Sbiis Saibian
  6. Almost Infinite

See also

Main article: -illion
1–9: 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-)
100–900: centillion · unviginticent · ducent · trecent · duotrigintatrecent · quadringent · quingent · sescent · septuagintisescent · septingent · octingent · nongent
1,000–1024: millillion · dumill · trimill · quadrimill · quinmill · sexmill · septimill · octimill · nonimill · myr · centimill · micr · nan · pic · femt · att · zept · yoct