The nongentyllion is equal to \(10^{2^{902}} = 10^{3.3810849993 \times 10^{271}}\) in the myriad system.

Names in -illion systems

According to Landon Curt Noll's The English name of a number, nongentyllion is also known as:

ten undecmillia^90duocenseptuaginmillia^89duocentreoctoginmillia^88trecentriginmillia^87octingenquattuornonaginmillia^86cenunnonaginmillia^85nongenduoviginmillia^84centreoctoginmillia^83duocenoctoquadraginmillia^82septingenquattuorquadraginmillia^81octingenquinoctoginmillia^80sescenseptenoctoginmillia^79sescenquinmillia^78septingenquintriginmillia^77quadringennovemmillia^76sescenduoviginmillia^75centremillia^74nongenquinviginmillia^73octingenquinmillia^72trecensexnonaginmillia^71quadringenquinnonaginmillia^70cenquinviginmillia^69nongenduomillia^68trecensexseptuaginmillia^67quingenseptenoctoginmillia^66octingensexseptuaginmillia^65septingenseptennonaginmillia^64duomillia^63cenviginmillia^62nongenunmillia^61quadringenoctoquinquaginmillia^60nongensextriginmillia^59sescensexoctoginmillia^58sescenquinseptuaginmillia^57sexoctoginmillia^56trecenseptenoctoginmillia^55trenonaginmillia^54cennovemoctoginmillia^53quadringenquinoctoginmillia^52quadringenundecmillia^51octingensexdecmillia^50censexquinquaginmillia^49septingenseptenquadraginmillia^48nongensextriginmillia^47septenquinquaginmillia^46duocenunnonaginmillia^45quadringenunsexaginmillia^44trecenquattuorquadraginmillia^43octingenuntriginmillia^42quingenquadraginmillia^41quingenduoquadraginmillia^40septingendecmillia^39nongenquattuorseptuaginmillia^38quinquadraginmillia^37quingenduooctoginmillia^36quingenunnonaginmillia^35nongenoctoseptuaginmillia^34septingenquinseptuaginmillia^33cenoctoviginmillia^32nongenduotriginmillia^31nongennovemtriginmillia^30trequadraginmillia^29septingentresexaginmillia^28septingenquattuorsexaginmillia^27quinseptuaginmillia^26septingenseptennonaginmillia^25octingenquinquaginmillia^24trecenduomillia^23unquadraginmillia^22octingenoctotriginmillia^21sescenquinoctoginmillia^20nongenquinquinquaginmillia^19censeptenquinquaginmillia^18nongensextriginmillia^17nongenduodecmillia^16tretriginmillia^15trecenseptendecmillia^14quinnonaginmillia^13duocennovemdecmillia^12centretriginmillia^11octingenquadraginmillia^10trecentresexaginmillia^9quadringenquattuorquadraginmillia^8octingenuntriginmillia^7septingensexseptuaginmillia^6octingentreviginmillia^5novemquinquaginmillia^4cenunquinquaginmillia^3septingentrequadraginmillia^2nongenquattuorsexaginmilliaquingentillion

Approximations

Notation Lower bound Upper bound
Arrow notation \(10\uparrow2\uparrow902\)
Down-arrow notation \(382\downarrow\downarrow106\) \(190\downarrow\downarrow120\)
Steinhaus-Moser Notation 127[3][3] 128[3][3]
Copy notation 3[3[272]] 4[4[272]]
H* function H(11H(89)) H(12H(89))
Taro's multivariable Ackermann function A(3,A(3,900)) A(3,A(3,901))
Pound-Star Notation #*((1))*((39))*8 #*((1))*((40))*8
BEAF {10,{2,902}}
Hyper-E notation EE[2]902
Bashicu matrix system (0)(1)[29] (0)(1)[30]
Hyperfactorial array notation (152!)! (153!)!
Fast-growing hierarchy \(f_2(f_2(893))\) \(f_2(f_2(894))\)
Hardy hierarchy \(H_{\omega^22}(893)\) \(H_{\omega^22}(894)\)
Slow-growing hierarchy \(g_{\omega^{\omega^{\omega^22+\omega7+1}3}}(10)\) \(g_{\omega^{\omega^{\omega^22+\omega7+1}4}}(10)\)

See also

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
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