Undecisescentillion

An undecisescentillion is equal to \(10^{1836}\) in the short scale and \(10^{3666}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 611th -illion number.
In the long scale, \(10^{1836}\) is called sestrecentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1836}\) (exact) 	\(1\times10^{1836}\) (exact)
Arrow notation 	\(10\uparrow 1836\) (exact) 	\(10\uparrow 1836\) (exact)
Steinhaus-Moser Notation 	652[3] 	653[3]
Chained arrow notation 	\(10\rightarrow 1836\) (exact) 	\(10\rightarrow 1836\) (exact)
Taro's multivariable Ackermann function	A(3,6096) 	A(3,6097)
BEAF & Bird's array notation 	{10,1836} (exact) 	{10,1836} (exact)
Hyper-E notation 	E1836 (exact) 	E1836 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(9)\) 	\(s(1)^3(\lambda x.x+1)(10)\)
m(n) map 	m(1)(652) 	m(1)(653)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6086)\) 	\(f_2(6087)\)
Hardy hierarchy 	\(H_{\omega^2}(6086)\) 	\(H_{\omega^2}(6087)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 8+\omega 3+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 8+\omega 3+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{3666}\) (exact) 	\(1\times10^{3666}\) (exact)
Arrow notation 	\(10\uparrow 3666\) (exact) 	\(10\uparrow 3666\) (exact)
Steinhaus-Moser Notation 	1191[3] 	1192[3]
Chained arrow notation 	\(10\rightarrow 3666\) (exact) 	\(10\rightarrow 3666\) (exact)
Taro's multivariable Ackermann function	A(3,12175) 	A(3,12176)
BEAF & Bird's array notation 	{10,3666} (exact) 	{10,3666} (exact)
Hyper-E notation 	E3666 (exact) 	E3666 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(10)\) 	\(s(1)^3(\lambda x.x+1)(11)\)
m(n) map 	m(1)(1191) 	m(1)(1192)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(12164)\) 	\(f_2(12165)\)
Hardy hierarchy 	\(H_{\omega^2}(12164)\) 	\(H_{\omega^2}(12165)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 3+\omega^2 6+\omega 6+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 3+\omega^2 6+\omega 6+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers