Duodecicentillion

A duodecicentillion is equal to \(10^{339}\) in the short scale and \(10^{672}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 112th -illion number.
In the long scale, \(10^{339}\) is called sesquinquagintilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{339}\) 	\(1\times10^{339}\)
Arrow notation 	\(10\uparrow 339\) 	\(10\uparrow 339\)
Taro's multivariable Ackermann function	A(3,1123) 	A(3,1124)
BEAF 	{10,339} 	{10,339}
Hyper-E notation 	E339 	E339
Fast-growing hierarchy 	\(f_2(1116)\) 	\(f_2(1117)\)
Hardy hierarchy 	\(H_{\omega^2}(1116)\)	\(H_{\omega^2}(1117)\)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{672}\) 	\(1\times10^{672}\)
Arrow notation 	\(10\uparrow 672\) 	\(10\uparrow 672\)
Taro's multivariable Ackermann function	A(3,2229) 	A(3,2230)
BEAF 	{10,672} 	{10,672}
Hyper-E notation 	E672 	E672
Fast-growing hierarchy 	\(f_2(2221)\) 	\(f_2(2222)\)
Hardy hierarchy 	\(H_{\omega^2}(2221)\)	\(H_{\omega^2}(2222)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers
Category:Powers of 10 with squarefree exponent