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viginticentillion is equal to \(10^{363}\) in the short scale and \(10^{720}\) in the long scale by the Conway and Guy's naming system[1][2][3][4] or the Cookiefonster's extension of Jonathan Bowers system[5] as it is the 120th -illion number.

In the long scale, \(10^{363}\) is called sexagintilliard.

Approximations[]

Notation Lower bound Upper bound
Scientific notation \(1\times10^{363}\)
Arrow notation \(10\uparrow363\)
Steinhaus-Moser Notation 164[3] 165[3]
Copy notation 9[363] 10[182]
Chained arrow notation 10→363
H* function H(120)
Taro's multivariable Ackermann function A(3,1201) A(3,1202)
BEAF & Bird's array notation {10,363}
Hyper-E notation E363
Hyperfactorial array notation 192! 193!
Fast-growing hierarchy \(f_2(1\,195)\) \(f_2(1\,196)\)
Hardy hierarchy \(H_{\omega^2}(1\,195)\) \(H_{\omega^2}(1\,196)\)
Slow-growing hierarchy \(g_{\omega^{\omega^23+\omega 6+3}}(10)\)

Sources[]

  1. Conway and Guy. (1995) "The book of Numbers" Copernicus
  2. Munafo, Robert. The Conway-Wechsler System. Retrieved 2023-02-09.
  3. Olsen, Steve. Big-Ass Numbers. Retrieved 2023-02-09.
  4. Fish. Conway's zillion numbers. Retrieved 2023-02-09.
  5. Cookiefonster. 1.8. Extensions to the -illions II: Jonathan Bowers' -illions Retrieved 2023-02-09.

See also[]

Main article: -illion
100–109: centillion (un- · duo- · tres- · quattuor- · quin- · sex- · septen- · octo- · noven-)
110–119: decicentillion (un- · duo- · tre- · quattuor- · quin- · se- · septen- · octo- · noven-)
120–129: viginticentillion (un- · duo- · tres- · quattuor- · quin- · ses- · septem- · octo- · novem-)
130–139: trigintacentillion (un- · duo- · tres- · quattuor- · quin- · ses- · septen- · octo- · noven-)
140–149: quadragintacentillion (un- · duo- · tres- · quattuor- · quin- · ses- · septen- · octo- · noven-)
150–159: quinquagintacentillion (un- · duo- · tres- · quattuor- · quin- · ses- · septen- · octo- · noven-)
160–169: sexagintacentillion (un- · duo- · tre- · quattuor- · quin- · se- · septen- · octo- · noven-)
170–179: septuagintacentillion (un- · duo- · tre- · quattuor- · quin- · se- · septen- · octo- · noven-)
180–189: octogintacentillion (un- · duo- · tres- · quattuor- · quin- · sex- · septem- · octo- · novem-)
190–199: nonagintacentillion (un- · duo- · tre- · quattuor- · quin- · se- · septe- · octo- · nove-)
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