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27 (twenty-seven) is a positive integer following 26 and preceding 28. Its ordinal form is written "27th" or "twenty-seventh".

In googology, it is called boogathree or fzthree.[1][2]

Properties

In googology

  • In Greek-based number-naming systems, 27 is associated with prefix "heptaicosa-", and with prefix "septemviginti-" in Latin systems.
  • 27 is equal to triangle(3) in Steinhaus-Moser notation.
  • 27 can be named "boogathree" with the booga- prefix[1][2] or "fzthree" with the fz- prefix.[1][2]
  • Since 27 is equal to 3 3-ated to 3 ({3, 3, 3} in the old version of BEAF), it occurs naturally when plugging threes into googological functions based on hyper-operators. For example, tritri is a power tower of 327 threes.
  • Aarex Tiaokhiao coined microhal for this number, and is equal to G(1,1) = G(0,1) = 3↑3 using Aarex's Graham Generator.[4]

Googological functions returning 27

27-0.png

In popular culture

In songs by parody artist "Weird Al" Yankovic the number 27 appears more than would be expected, it was in fact coincidental at first but when it was brought to his attention Weird Al decided to deliberately insert references whenever possible to the number.

Sources

  1. 1.0 1.1 1.2 Saibian, Sbiis. The Fz, The Fuga & The Megafuga. Retrieved 2021-07-22.
  2. OEIS, Sequence A000578. Accessed 2021-06-01.]
  3. Forcal - Aarex's Large Numbers (archived 2016-04-11)

See also

Gar-: garone · gartwo · garthree · garfour · garfive · garsix · garseven · gareight · garnine · garten · garhundred · gargoogol · gartrialogue · gargoogolplex · gargiggol
Fz-: fzone · fztwo · fzthree · fzfour · fzfive · fzsix · fzseven · fzeight · fznine · fzten · fztwenty · fzhundred · fzthousand · fzmillion · fzgoogol · fzmilliplexion · fzgoogolplex · fzgargoogolplex · fzgargantugoogolplex · fzgiggol
Fuga-: fugaone · fugatwo · fugathree · fugafour · fugafive · fugasix · fugaseven · fugaeight · fuganine · fugaten · fugaeleven · fugahundred · fugagoogol · fugagoogolplex · fugagargoogolplex · fugagargantugoogolplex · fugagiggol
Megafuga-: megafugaone · megafugatwo · megafugathree · megafugafour · megafugafive · megafugasix · megafugaseven · megafugaeight · megafuganine · megafugaten · megafugaeleven · megafugatwelve · megafugathirteen · megafugafourteen · megafugafifteen · megafugasixteen · megafugaseventeen · megafugaeighteen · megafuganineteen · megafugatwenty · megafugathirty · megafugaforty · megafugafifty · megafugasixty · megafugaseventy · megafugaeighty · megafuganinety · megafugahundred · megafugagoogol · megafugagoogolplex · megafugagargoogolplex · megafugagargantugoogolplex
Booga-: boogaone · boogatwo · boogathree · boogafour · boogafive · boogasix · boogaten boogahundred · boogagoogol · boogagoogolplex
Gag: gagone · gagtwo · gagthree · gagfour · gagfive · gagsix · gagseven · gageight · gagnine · gagten · gaggoogol · gaggoogolplex

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