Undeciducentillion

An undeciducentillion is equal to \(10^{636}\) in the short scale and \(10^{1266}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 211th -illion number.
In the long scale, \(10^{636}\) is called sexcentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{636}\) (exact) 	\(1\times10^{636}\) (exact)
Arrow notation 	\(10\uparrow 636\) (exact) 	\(10\uparrow 636\) (exact)
Steinhaus-Moser Notation 	262[3] 	263[3]
Chained arrow notation 	\(10\rightarrow 636\) (exact) 	\(10\rightarrow 636\) (exact)
Taro's multivariable Ackermann function	A(3,2109) 	A(3,2110)
BEAF & Bird's array notation 	{10,636} (exact) 	{10,636} (exact)
Hyper-E notation 	E636 (exact) 	E636 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(8)\) 	\(s(1)^3(\lambda x.x+1)(9)\)
m(n) map 	m(1)(262) 	m(1)(263)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[17] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[18]
Fast-growing hierarchy 	\(f_2(2101)\) 	\(f_2(2102)\)
Hardy hierarchy 	\(H_{\omega^2}(2101)\) 	\(H_{\omega^2}(2102)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 6+\omega 3+6}}(10)\) (exact)	\(g_{\omega^{\omega^2 6+\omega 3+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1266}\) (exact) 	\(1\times10^{1266}\) (exact)
Arrow notation 	\(10\uparrow 1266\) (exact) 	\(10\uparrow 1266\) (exact)
Steinhaus-Moser Notation 	473[3] 	474[3]
Chained arrow notation 	\(10\rightarrow 1266\) (exact) 	\(10\rightarrow 1266\) (exact)
Taro's multivariable Ackermann function	A(3,4202) 	A(3,4203)
BEAF & Bird's array notation 	{10,1266} (exact) 	{10,1266} (exact)
Hyper-E notation 	E1266 (exact) 	E1266 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(8)\) 	\(s(1)^3(\lambda x.x+1)(9)\)
m(n) map 	m(1)(473) 	m(1)(474)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(4193)\) 	\(f_2(4194)\)
Hardy hierarchy 	\(H_{\omega^2}(4193)\) 	\(H_{\omega^2}(4194)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 2+\omega 6+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 2+\omega 6+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers