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The novemnonagintacentillion is equal to $$10^{600}$$ in short scale and $$10^{1,194}$$ in long scale.[1]

That was called $$10^{600}$$ in long scale centillion.

Aarex Tiaokhiao calls this number bicentillion.[2] He also gave the names sxoohol and 600-noogol, referring to the short scale value of this number.[3]

## ApproximationsEdit

For short scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{600}$$
Arrow notation $$10\uparrow600$$
Steinhaus-Moser Notation 250[3] 251[3]
Copy notation 9[600] 1[601]
Chained arrow notation $$10\rightarrow600$$
Taro's multivariable Ackermann function A(3,1990) A(3,1991)
Pound-Star Notation #*((116))*15 #*((117))*15
BEAF & Bird's array notation {10,600}
Hyper-E notation E600
Bashicu matrix system (0)(0)(0)(0)(0)(0)(0)[48696] (0)(0)(0)(0)(0)(0)(0)[48697]
Hyperfactorial array notation 294! 295!
Strong array notation s(10,600)
Fast-growing hierarchy $$f_2(1\,982)$$ $$f_2(1\,983)$$
Hardy hierarchy $$H_{\omega^2}(1\,982)$$ $$H_{\omega^2}(1\,983)$$
Slow-growing hierarchy $$g_{\omega^{\omega^{2}\times 6}}(10)$$

For long scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{1,194}$$
Arrow notation $$10\uparrow1,194$$
Steinhaus-Moser Notation 450[3] 451[3]
Copy notation 9[1194] 1[1195]
Chained arrow notation $$10\rightarrow1,194$$
Taro's multivariable Ackermann function A(3,3963) A(3,3964)
Pound-Star Notation #*((829))*20 #*((830))*20
BEAF & Bird's array notation {10,1194}
Hyper-E notation E1,194
Bashicu matrix system (0)(1)[3] (0)(1)[4]
Hyperfactorial array notation 522! 523!
Strong array notation s(10,1194)
Fast-growing hierarchy $$f_2(3\,954)$$ $$f_2(3\,955)$$
Hardy hierarchy $$H_{\omega^2}(3\,954)$$ $$H_{\omega^2}(3\,955)$$
Slow-growing hierarchy $$g_{\omega^{\omega^3+\omega^2+\omega\times 9+4}}(10)$$