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An octovigintillion is equal to \(10^{87}\) in the short scale, or \(10^{168}\) in the long scale by Conway and Guy's naming system[1][2][3] or by Rowlett's naming system.[4]

In the long scale, \(10^{87}\) is called quattuordecilliard, which is commonly used in France and Germany.

Sbiis Saibian gave the name viginti-octillion referring to the value of this number.[5]

Approximations

Notation Lower bound Upper bound
Scientific notation \(1\times10^{87}\)
Arrow notation \(10\uparrow87\)
Steinhaus-Moser Notation 50[3] 51[3]
Copy notation 9[87] 10[44]
Taro's multivariable Ackermann function A(3,286) A(3,287)
Pound-Star Notation #*(6,9,2,2,4,0,6)*7 #*(1,6,5,0,7,0,1)*8
BEAF {10,87}
Bashicu matrix system (0)(0)(0)(0)(0)[523] (0)(0)(0)(0)(0)[524]
Hyperfactorial array notation 62! 63!
Fast-growing hierarchy \(f_2(280)\) \(f_2(281)\)
Hardy hierarchy \(H_{\omega^2}(280)\) \(H_{\omega^2}(281)\)
Slow-growing hierarchy \(g_{\omega^{\omega8+7}}(10)\)

List of prefixed numbers derived from vigintillion

Name Short scale Long scale
unvigintillion 1066 10126
duovigintillion 1069 10132
trevigintillion 1072 10138
quattuorvigintillion 1075 10144
quinvigintillion 1078 10150
sexvigintillion 1081 10156
septenvigintillion 1084 10162
octovigintillion 1087 10168
novemvigintillion 1090 10174

Sources

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 · 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
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