The uttaraparamanurajahpravesa is equal to \(10^{421}\).[1] It's also equal to ten noventrigintacentillion.[2]

Approximations

Notation Lower bound Upper bound
Scientific notation \(1\times10^{421}\)
Arrow notation \(10\uparrow421\)
Steinhaus-Moser Notation 185[3] 186[3]
Copy notation 9[421] 10[211]
Taro's multivariable Ackermann function A(3,1395) A(3,1396)
Pound-Star Notation #*((43))*13 #*((44))*13
BEAF {10,421}
Hyper-E notation E421
Bashicu matrix system (0)(0)(0)(0)(0)(0)(0)[1945] (0)(0)(0)(0)(0)(0)(0)[1946]
Hyperfactorial array notation 219! 220!
Fast-growing hierarchy \(f_2(1388)\) \(f_2(1389)\)
Hardy hierarchy \(H_{\omega^2}(1388)\) \(H_{\omega^2}(1389)\)
Slow-growing hierarchy \(g_{\omega^{\omega^24+\omega2+1}}(10)\)

Sources

See also

Fish numbers: Fish number 1 · Fish number 2 · Fish number 3 · Fish number 4 · Fish number 5 · Fish number 6 · Fish number 7
Mapping functions: S map · SS map · S(n) map · M(n) map · M(m,n) map
By Aeton: Okojo numbers · N-growing hierarchy
By BashicuHyudora: Primitive sequence number · Pair sequence number · Bashicu matrix system
By Kanrokoti: KumaKuma ψ function
By 巨大数大好きbot: Flan numbers
By Jason: Irrational arrow notation · δOCF · δφ · ε function
By mrna: 段階配列表記 · 降下段階配列表記 · 多変数段階配列表記 · SSAN · S-σ
By Nayuta Ito: N primitive
By p進大好きbot: Large Number Garden Number
By Yukito: Hyper primitive sequence system · Y sequence · YY sequence · Y function
Indian counting system: Lakh · Crore · Tallakshana · Uppala · Dvajagravati · Paduma · Mahakathana · Asankhyeya · Dvajagranisamani · Vahanaprajnapti · Inga · Kuruta · Sarvanikshepa · Agrasara · Uttaraparamanurajahpravesa · Avatamsaka Sutra · Nirabhilapya nirabhilapya parivarta
Chinese, Japanese and Korean counting system: Wan · Yi · Zhao · Jing · Gai · Zi · Rang · Gou · Jian · Zheng · Zai · Ji · Gougasha · Asougi · Nayuta · Fukashigi · Muryoutaisuu
Other: Taro's multivariable Ackermann function · TR function · Arai's \(\psi\) · Sushi Kokuu Hen

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