Octogintaseptingentillion

An octogintaseptingentillion is equal to \(10^{2343}\) in the short scale and \(10^{4680}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 780th -illion number.
In the long scale, \(10^{2343}\) is called nonagintatrecentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2343}\) (exact) 	\(1\times10^{2343}\) (exact)
Arrow notation 	\(10\uparrow 2343\) (exact) 	\(10\uparrow 2343\) (exact)
Steinhaus-Moser Notation 	806[3] 	807[3]
Chained arrow notation 	\(10\rightarrow 2343\) (exact) 	\(10\rightarrow 2343\) (exact)
Taro's multivariable Ackermann function	A(3,7780) 	A(3,7781)
BEAF & Bird's array notation 	{10,2343} (exact) 	{10,2343} (exact)
Hyper-E notation 	E2343 (exact) 	E2343 (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)(806) 	m(1)(807)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(7770)\) 	\(f_2(7771)\)
Hardy hierarchy 	\(H_{\omega^2}(7770)\) 	\(H_{\omega^2}(7771)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 3+\omega 4+3}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 3+\omega 4+3}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4680}\) (exact) 	\(1\times10^{4680}\) (exact)
Arrow notation 	\(10\uparrow 4680\) (exact) 	\(10\uparrow 4680\) (exact)
Steinhaus-Moser Notation 	1476[3] 	1477[3]
Chained arrow notation 	\(10\rightarrow 4680\) (exact) 	\(10\rightarrow 4680\) (exact)
Taro's multivariable Ackermann function	A(3,15543) 	A(3,15544)
BEAF & Bird's array notation 	{10,4680} (exact) 	{10,4680} (exact)
Hyper-E notation 	E4680 (exact) 	E4680 (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)(1476) 	m(1)(1477)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(15532)\) 	\(f_2(15533)\)
Hardy hierarchy 	\(H_{\omega^2}(15532)\) 	\(H_{\omega^2}(15533)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+\omega^2 6+\omega 8}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+\omega^2 6+\omega 8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers