Pentexian is equal to 64×5 = 620 = 3,656,158,440,062,976 in the Misalian seximal system.[1][2] The term was coined by jan Misali.

Approximations

Notation Lower bound Upper bound
Scientific notation \(3.6561\times10^{15}\) \(3.6562\times10^{15}\)
Arrow notation \(6\uparrow20\)
Steinhaus-Moser Notation 13[3] 14[3]
Copy notation 36[8] 37[8]
Chained arrow notation \(6\rightarrow20\)
Taro's multivariable Ackermann function A(3,49) A(3,50)
PlantStar's Debut Notation [9] [10]
BEAF & Bird's array notation {6,20}
Hyper-E notation E[6]20
Bashicu matrix system (to be determined)
Hyperfactorial array notation 17! 18!
Strong array notation s(6,20)
Fast-growing hierarchy \(f_2(46)\) \(f_2(47)\)
Hardy hierarchy \(H_{\omega^2}(46)\) \(H_{\omega^2}(47)\)
Slow-growing hierarchy \(g_{\omega^{\omega 3+2}}(6)\)

Sources

less than unexian: six · twelve · thirsy · foursy · fifsy · nif · tarumba
-exians: unexian · biexian · triexian · quadexian · pentexian · unnilexian · ununexian · umbiexian · untriexian · unquadexian · umpentexian · binilexian
extended -exians: biunexian · bibiexian · bitriexian · biquadexian · bipentexian · trinilexian · quadanilexian · pentanilexian · unnilnilexian · binilnilexian · trinilnilexian · quadanilnilexian · pentanilnilexian · unnilnilnilexian · unnilnilnilnilexian
-eciams: uneciam · bieciam · trieciam · quadeciam · penteciam · unnileciam · ununeciam · umbieciam · untrieciam · unquadeciam · umpenteciam · binileciam · biuneciam · bibieciam · bitrieciam · biquadeciam · bipenteciam · trinileciam · quadanileciam · pentanileciam · untwaieciam · unthrieciam · umfedrueciam · umfimfeciam · unainoeciam · unainaineciam · unaintwaieciam · unainthrieciam · unaimfedrueciam · unaimfimfeciam · untwainoeciam · unthrinoeciam · umfedrunoeciam · umfimfanoeciam · unaindvieciam · unaintreyeciam · unainchatureciam · unaimpancheciam · unainekashunyeciam · unainekayilingeciam · unainekayisasmereciam · unainekayisasnabiniboeciam · unainekayisasnabiniboniboeciam
Other systems by jan Misali: Chronary system · Misalian decadozenal system · Misalian base-naming system

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