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A dialogue is equal to 210 = 1010 = 10,000,000,000,[1] ten billion, or tenplex. The term was coined by Sbiis Saibian, and its name is a homonym with an English word meaning a conversation between two people. Using Alistair Cockburn's fz- prefix, it can be named "fzten".[2]

This number is also called a guppyspeck.[3]

Aarex Tiaokhiao calls this number doocol, 10-noogol, uoonolplex, bigiol[4], or goonaoloctault, and it's equal to a(10,100,0)x[8] in Aarex's Array Notation.[5]

Username5243 calls this number niloogolseptiplex, goodcol, goonolplex or doodol, and it's equal to 10[2]2 = 10[1]10 = 10[1]10[1]1 in Username5243's Array Notation.[6]

## In Culture

Some currencies, such as the German Papiermark, the Hungarian pengő and the third Zimbabwean dollar, had banknotes with this number in the denomination.

In the song Marvin the android Marvin, (who is a character from The Hitchhiker's Guide To The Galaxy ), laments that he has "Ten billion logic functions, maybe more" but "They make me pick the paper off the floor".

## Approximations in other notations

Notation Lower bound Upper bound
Scientific notation $$1\times10^{10}$$
Arrow notation $$10\uparrow\uparrow2$$
Steinhaus-Moser Notation 10[3]
Copy notation 9[10] 1[11]
Taro's multivariable Ackermann function A(3,30) A(3,31)
Pound-Star Notation #*(0,0,6)*3 #*(1,0,6)*3
BEAF {10,2,2}
Bashicu matrix system (0)[100000]
Hyperfactorial array notation 13! 14!
Fast-growing hierarchy $$f_2(28)$$ $$f_2(29)$$
Hardy hierarchy $$H_{\omega^2}(28)$$ $$H_{\omega^2}(29)$$
Slow-growing hierarchy $$g_{\omega^\omega}(10)$$

## Sources

Saibian's power towers of 10s
Numbers named with the fuga- family of prefixes
-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)
Jumbo shrimp group: (binary/ternary/octal)jumbo shrimp
Lightweight group: (binary/ternary/octal)lightweight
Ogol group: (binary/ternary/octal)ogolspeck · (binary/ternary/octal)ogolcrumb · (binary/ternary/octal)ogolchunk · (ternary/quaternary/quinary/duodecimal/hexadecimal/vigesimal/sexagesimal)ogol(bit/byte)
Tiny twerpuloid group: (binary/ternary/octal)tiny twerpuloid
Googol group: (binary/ternary/octal)googolspeck · (binary/ternary/octal)googolcrumb · (binary/ternary/octal)googolchunk · (ternary/quaternary/quinary/duodecimal/hexadecimal/vigesimal/sexagesimal)googol(bit/byte) · googolbunch · googolcrowd · googolswarm
Eceton group: ecetonspeck · ecetoncrumb · ecetonchunk · ecetonbunch · ecetoncrowd · ecetonswarm
Numbers with base-multipliers
Numbers with -plex