Unnonagintaseptingentillion

An unnonagintaseptingentillion is equal to \(10^{2376}\) in the short scale and \(10^{4746}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 791st -illion number.
In the long scale, \(10^{2376}\) is called senonagintatrecentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2376}\) (exact) 	\(1\times10^{2376}\) (exact)
Arrow notation 	\(10\uparrow 2376\) (exact) 	\(10\uparrow 2376\) (exact)
Steinhaus-Moser Notation 	816[3] 	817[3]
Chained arrow notation 	\(10\rightarrow 2376\) (exact) 	\(10\rightarrow 2376\) (exact)
Taro's multivariable Ackermann function	A(3,7889) 	A(3,7890)
BEAF & Bird's array notation 	{10,2376} (exact) 	{10,2376} (exact)
Hyper-E notation 	E2376 (exact) 	E2376 (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)(816) 	m(1)(817)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(7879)\) 	\(f_2(7880)\)
Hardy hierarchy 	\(H_{\omega^2}(7879)\) 	\(H_{\omega^2}(7880)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 3+\omega 7+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 3+\omega 7+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4746}\) (exact) 	\(1\times10^{4746}\) (exact)
Arrow notation 	\(10\uparrow 4746\) (exact) 	\(10\uparrow 4746\) (exact)
Steinhaus-Moser Notation 	1494[3] 	1495[3]
Chained arrow notation 	\(10\rightarrow 4746\) (exact) 	\(10\rightarrow 4746\) (exact)
Taro's multivariable Ackermann function	A(3,15762) 	A(3,15763)
BEAF & Bird's array notation 	{10,4746} (exact) 	{10,4746} (exact)
Hyper-E notation 	E4746 (exact) 	E4746 (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)(1494) 	m(1)(1495)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(15751)\) 	\(f_2(15752)\)
Hardy hierarchy 	\(H_{\omega^2}(15751)\) 	\(H_{\omega^2}(15752)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+\omega^2 7+\omega 4+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+\omega^2 7+\omega 4+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers