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The quintyllion is equal to \(10^{128}\) in the myriad system[1][2], or 10 squared 7 times.

Full Number Edit

100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

Approximations Edit

Notation Lower bound Upper bound
Scientific notation \(1\times10^{128}\)
Arrow notation \(10\uparrow128\)
Steinhaus-Moser Notation 69[3] 70[3]
Copy notation 9[128] 1[129]
Taro's multivariable Ackermann function A(3,422) A(3,423)
Pound-Star Notation #*(1,12,0,10,3,3,5,2)*9 #*(2,12,0,10,3,3,5,2)*9
BEAF {10,128}
Hyper-E notation E128
Bashicu matrix system (0)(0)(0)(0)(0)[10000]
Hyperfactorial array notation 84! 85!
Fast-growing hierarchy \(f_2(416)\) \(f_2(417)\)
Hardy hierarchy \(H_{\omega^2}(416)\) \(H_{\omega^2}(417)\)
Slow-growing hierarchy \(g_{\omega^{\omega^2+\omega2+8}}(10)\)

Sources Edit

  1. Myriad system on Wikipedia
  2. Large numbers By Robert Munafo

See alsoEdit


myllion byllion tryllion quadryllion quintyllion
sextyllion septyllion octyllion nonyllion decyllion
undecyllion duodecyllion tredecyllion quattuordecyllion quindecyllion
sexdecyllion septdecyllion octodecyllion novemdecyllion vigintyllion
unvigintyllion duovigintyllion trevigintyllion quattuorvigintyllion quinvigintyllion
sexvigintyllion septemvigintyllion octovigintyllion novemvigintyllion trigintyllion
untrigintyllion duotrigintyllion tretrigintyllion quattuortrigintyllion quintrigintyllion
sextrigintyllion septtrigintyllion octotrigintyllion novemtrigintyllion quadragintyllion
quinquagintyllion sexagintyllion septuagintyllion octogintyllion nonagintyllion
centyllion ducentyllion trecentyllion quadringentyllion quingentyllion
sescentyllion septingentyllion octingentyllion nongentyllion millyllion
myryllion micryllion nanyllion picyllion femtyllion
attyllion zeptyllion yoctyllion googolyllion latinlatinlatinbyllionyllionyllionyllion