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Not to be confused with Nanillion.
"Gootirol" redirects here. It is not to be confused with Gootrol.
For long scale's nonillion, see septendecillion.

A nonillion is equal to 1030 in the short scale, or 1054 in the long scale.[1] It is sometimes erroneously referred to as nontillion.[2]

In the long scale, 1030 is called a quintillion.

This number is also called dekillion (not to be confused with decillion) in Russ Rowlett's Greek-based naming system of -illions.[3]

Aarex Tiaokhiao calls this number decillion (not to be confused with the standard system decillion).[4] He also gave name thootol and 30-noogol, referring to the short scale value of this number.[5]

Sbiis Saibian gave the name gobycrumb, referring to the short scale value of this number.[6]

Username5243 calls this number (in short scale) gootirol, and it's equal to 10[1]30 in Username5243's Array Notation.[7]

## Decimal

• 1,000,000,000,000,000,000,000,000,000,000 - short scale
• 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 - long scale

## Examples

• The mass of the sun is about 1.989 nonillion kg.[8]
• The prefix tena- multiplies by one nonillion.
• A nonillion dollars would cover the world with a layer of 15,000km thick.

## Approximations

For short scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{30}$$
Arrow notation $$10\uparrow30$$
Steinhaus-Moser Notation 22[3] 23[3]
Copy notation 9[30] 1[31]
Taro's multivariable Ackermann function A(3,96) A(3,97)
Pound-Star Notation #*(9,6,4)*9 #*(0,1,0,0,1)*5
BEAF {10,30}
Bashicu matrix system (0)(0)(0)[5623] (0)(0)(0)[5624]
Hyperfactorial array notation 28! 29!
Fast-growing hierarchy $$f_2(93)$$ $$f_2(94)$$
Hardy hierarchy $$H_{\omega^2}(93)$$ $$H_{\omega^2}(94)$$
Slow-growing hierarchy $$g_{\omega^{\omega3}}(10)$$

For long scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{54}$$
Arrow notation $$10\uparrow54$$
Steinhaus-Moser Notation 34[3] 35[3]
Copy notation 9[54] 1[55]
Taro's multivariable Ackermann function A(3,176) A(3,177)
Pound-Star Notation #*(5,6,4,6,0,2)*6 #*(1,7,8,1,3)*8
BEAF {10,54}
Bashicu matrix system (0)(0)(0)(0)[2371] (0)(0)(0)(0)[2372]
Hyperfactorial array notation 43! 44!
Fast-growing hierarchy $$f_2(171)$$ $$f_2(172)$$
Hardy hierarchy $$H_{\omega^2}(171)$$ $$H_{\omega^2}(172)$$
Slow-growing hierarchy $$g_{\omega^{\omega5+4}}(10)$$

## 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)