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A quattuortrigintillion is equal to $$10^{105}$$.[1]

In the long scale which is commonly used in France and Germany, $$10^{105}$$ is called septendecilliard.

Sbiis Saibian gave the name googolcrowd, referring to the value of this number.[2]

10105 is also called kumuda.[3]

## Decimal expansion

1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

## Approximations

Notation Lower bound Upper bound
Scientific notation $$1\times10^{105}$$
Arrow notation $$10\uparrow105$$
Steinhaus-Moser Notation 59[3] 60[3]
Copy notation 9[105] 10[53]
Taro's multivariable Ackermann function A(3,345) A(3,346)
Pound-Star Notation #*(11,7,10,8,5,8)*11 #*(7,4,5,5,7,7,3)*9
BEAF {10,105}
Hyper-E notation E105
Bashicu matrix system (0)(0)(0)(0)(0)[1910] (0)(0)(0)(0)(0)[1911]
Hyperfactorial array notation 72! 73!
Fast-growing hierarchy $$f_2(340)$$ $$f_2(341)$$
Hardy hierarchy $$H_{\omega^2}(340)$$ $$H_{\omega^2}(341)$$
Slow-growing hierarchy $$g_{\omega^{\omega^2+5}}(10)$$

## List of prefixed numbers derived from trigintillion

Name Short scale Long scale
untrigintillion 1096 10186
duotrigintillion 1099 10192
tretrigintillion 10102 10198
quattuortrigintillion 10105 10204
quintrigintillion 10108 10210
sextrigintillion 10111 10216
septentrigintillion 10114 10222
octotrigintillion 10117 10228
novemtrigintillion 10120 10234

## Sources

-minutia group
n-ary numbers with multipliers
Eyelash mite group: eyelash mite-speck · eyelash mite-crumb · eyelash mite-chunk · (binary/ternary/octal)eyelash mite · eyelash mite-bunch · eyelash mite-crowd · eyelash mite-swarm
Dust mite group: dust mite-speck · dust mite-crumb · dust mite-chunk · (binary/ternary/octal)dust mite · dust mite-bunch · dust mite-crowd · dust mite-swarm
Cheese mite group: cheese mite-speck · cheese mite-crumb · cheese mite-chunk · (binary/ternary/octal)cheese mite · cheese mite-bunch · cheese mite-crowd · cheese mite-swarm
Clover mite group: clover mite-speck · clover mite-crumb · clover mite-chunk · (binary/ternary/octal)clover mite · clover mite-bunch · clover mite-crowd · clover mite-swarm
Pipsqueak group: (binary/ternary/octal)pipsqueak
Little squeaker group: (binary/ternary/octal)little squeaker
Small fry group: (binary/ternary/octal)small fry
Guppy group: (binary/ternary/octal)guppyspeck · (binary/ternary/octal)guppycrumb · (binary/ternary/octal)guppychunk · (ternary/quaternary/quinary/duodecimal/hexadecimal/vigesimal/sexagesimal)guppy(bit/byte)
Minnow group: (binary/ternary/octal)minnowspeck · (binary/ternary/octal)minnowcrumb · (binary/ternary/octal)minnowchunk · (ternary)minnow(bit/byte)
Goby group: (binary/ternary/octal)gobyspeck · (binary/ternary/octal)gobycrumb · (binary/ternary/octal)gobychunk · (ternary)goby(bit/byte)