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Googoldeciplex

Googoldeciplex in zeroes

The googoldeciplex (also known as googoldekaplex or googolplexplexplexplexplexplexplexplexplexplex) is equal to E100#11 = EEEEEEEEEEE100 in Hyper-E notation.[1][2]

It is also equal to 1010101010101010101010100, or a 1 followed by a googolnoniplex (googolplexplexplexplexplexplexplexplexplex) zeroes. It is 10101010101010101010100+1 digits long.

Writing down the full decimal expansion would take 10101010101010101010100-6 books of 400 pages each, with 2,500 digits on each page (except for the first, which would have 2,501).

DeepLineMadom calls the number troogoldeciplex, and is equal to 10[3]10[3]10[3]10[3]10[3]10[3]10[3]10[3]10[3]10[3]10[3]100 in DeepLineMadom's Array Notation.[3]

Etymology[]

The name of this number is based on SI prefix "deci-" and the number "googolplex".

Approximations in other notations[]

Notation Approximation
Up-arrow notation \(57 \uparrow \uparrow 12\)
Chained arrow notation \(57 \rightarrow 12 \rightarrow 2 \)
Hyper-E notation \(\textrm{E}100\#11\) (exact)
Hyperfactorial array notation \(15!1\)
BEAF \(\{57,12,2\}\)
Fast-growing hierarchy \(f^{11}_2(326)\) ~ \(f_3(11)\)
Hardy hierarchy \(H_{\omega^2{11}}(324)\)
Slow-growing hierarchy \(g_{\varepsilon_0}(12)\)

Sources[]

  1. Pointless Googolplex Stuffs - Googol-n-plex numbers (retrieved March 19, 2024)
  2. Plexing googols - Google Docs (retrieved March 19, 2024)
  3. Pointless Googolplex Stuffs - DLMAN Part 1 (retrieved 9 November 2024)

See also[]

Googol and related numbers

Originals: googol · googolplex
Cockburn's examples: gargoogolplex · fzgoogolplex · (mega)fugagoogolplex
Googol-n-plex: googolduplex · googoltriplex · -quadriplex · -quinplex · -sextiplex · -septiplex · -octiplex · -noniplex · -deciplex · -centiplex
Googol-103n-plex: googolmilliplex · -megaplex · -gigaplex · -teraplex · -petaplex · -exaplex · -zettaplex · -yottaplex · -xennaplex · -vekaplex · -mekaplex
Bowers' extensions: giggol · gaggol · geegol · boogol · biggol · troogol · goobol · more...
Saibian's extensions: googol-minutia · googolchime · googoltoll · googolgong · grangol · greagol · gigangol · gugold · graatagold · gugolthra · throogol · godgahlah · tethrathoth · more...
Miscellany: googolbang (10100!) · googolminex (10^-10100) · googolteen · googolty · great googol(plex) · gooprol · little googol/googolbit · zootzootplex

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