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The ogolding is equal to 10400 = E400.[1] The term was coined by Sbiis Saibian. It is also equal to $$(10^{100})^{4}$$. It is also called ten duotrigintacentillion in the short scale. It is 401 digits long.

Aarex Tiaokhiao calls this number qoohrol or 400-noogol.[2]

Ogolding is also known as "ten cenduotrigintillion" according to Landon Curt Noll's The English name of a number.

## Approximations

Notation Lower bound Upper bound
Scientific notation $$1\times10^{400}$$
Arrow notation $$10\uparrow400$$
Steinhaus-Moser Notation 177[3] 178[3]
Copy notation 9[400] 1[401]
Taro's multivariable Ackermann function A(3,1325) A(3,1326)
Pound-Star Notation #*((6997))*12 #*((6998))*12
BEAF {10,400}
Bashicu matrix system (0)(0)(0)(0)(0)(0)(0)[1333] (0)(0)(0)(0)(0)(0)(0)[1334]
Hyperfactorial array notation 210! 211!
Fast-growing hierarchy $$f_2(1318)$$ $$f_2(1319)$$
Hardy hierarchy $$H_{\omega^2}(1318)$$ $$H_{\omega^2}(1319)$$
Slow-growing hierarchy $$g_{\omega^{\omega^24}}(10)$$

## Sources

1. Saibian, Sbiis. Hyper-E Numbers (1-1141)One to Infinity. Retrieved 2019-02-19.
2. Part 1 (LAN) - Aarex Googology

-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)