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The trecentyllion is equal to \(10^{2^{302}} = 10^{8.1481439053 \times 10^{90}}\) in the myriad system, or 10 squared 302 times.

Approximations in other notations

Notation Lower bound Upper bound
Scientific notation \(10^{8.148143 \times 10^{90}}\)
Arrow notation \(10\uparrow2\uparrow302\)
Down-arrow notation \(827\downarrow\downarrow32\) \(552\downarrow\downarrow34\)
Steinhaus-Moser Notation 51[3][3] 52[3][3]
Copy notation 7[7[91]] 8[8[91]]
H* function H(2H(29)) H(3H(29))
Taro's multivariable Ackermann function A(3,A(3,300)) A(3,A(3,301))
Pound-Star Notation #*((1))*(7,4,6,1)*10 #*((1))*(1,4,1,2,7)*6
BEAF {10,{2,302}}
Hyper-E notation EE[2]302
Bashicu matrix system (0)(1)[17] (0)(1)[18]
Hyperfactorial array notation (63!)! (64!)!
Fast-growing hierarchy \(f_2(f_2(295))\) \(f_2(f_2(296))\)
Hardy hierarchy \(H_{\omega^22}(295)\) \(H_{\omega^22}(296)\)
Slow-growing hierarchy \(g_{\omega^{\omega^{\omega9}8}}(10)\) \(g_{\omega^{\omega^{\omega9}9}}(10)\)

See also

Myriad System Numbers 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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