Untrigintatrecentillion

An untrigintatrecentillion is equal to \(10^{996}\) in the short scale and \(10^{1986}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 331st -illion number.
In the long scale, \(10^{996}\) is called sesexagintacentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{996}\) (exact) 	\(1\times10^{996}\) (exact)
Arrow notation 	\(10\uparrow 996\) (exact) 	\(10\uparrow 996\) (exact)
Steinhaus-Moser Notation 	385[3] 	386[3]
Chained arrow notation 	\(10\rightarrow 996\) (exact) 	\(10\rightarrow 996\) (exact)
Taro's multivariable Ackermann function	A(3,3305) 	A(3,3306)
BEAF & Bird's array notation 	{10,996} (exact) 	{10,996} (exact)
Hyper-E notation 	E996 (exact) 	E996 (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)(385) 	m(1)(386)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(3296)\) 	\(f_2(3297)\)
Hardy hierarchy 	\(H_{\omega^2}(3296)\) 	\(H_{\omega^2}(3297)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 9+\omega 9+6}}(10)\) (exact)	\(g_{\omega^{\omega^2 9+\omega 9+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1986}\) (exact) 	\(1\times10^{1986}\) (exact)
Arrow notation 	\(10\uparrow 1986\) (exact) 	\(10\uparrow 1986\) (exact)
Steinhaus-Moser Notation 	698[3] 	699[3]
Chained arrow notation 	\(10\rightarrow 1986\) (exact) 	\(10\rightarrow 1986\) (exact)
Taro's multivariable Ackermann function	A(3,6594) 	A(3,6595)
BEAF & Bird's array notation 	{10,1986} (exact) 	{10,1986} (exact)
Hyper-E notation 	E1986 (exact) 	E1986 (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)(698) 	m(1)(699)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6584)\) 	\(f_2(6585)\)
Hardy hierarchy 	\(H_{\omega^2}(6584)\) 	\(H_{\omega^2}(6585)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 9+\omega 8+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 9+\omega 8+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers