Octoquinquagintacentillion

An octoquinquagintacentillion is equal to \(10^{477}\) in the short scale and \(10^{948}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 158th -illion number.
In the long scale, \(10^{477}\) is called novenseptuagintilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{477}\) (exact) 	\(1\times10^{477}\) (exact)
Arrow notation 	\(10\uparrow 477\) (exact) 	\(10\uparrow 477\) (exact)
Steinhaus-Moser Notation 	206[3] 	207[3]
Chained arrow notation 	\(10\rightarrow 477\) (exact) 	\(10\rightarrow 477\) (exact)
Taro's multivariable Ackermann function	A(3,1581) 	A(3,1582)
BEAF & Bird's array notation 	{10,477} (exact) 	{10,477} (exact)
Hyper-E notation 	E477 (exact) 	E477 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(7)\) 	\(s(1)^3(\lambda x.x+1)(8)\)
m(n) map 	m(1)(206) 	m(1)(207)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)[72] 	(0)(0)(0)(0)(0)(0)(0)(0)[73]
Fast-growing hierarchy 	\(f_2(1573)\) 	\(f_2(1574)\)
Hardy hierarchy 	\(H_{\omega^2}(1573)\) 	\(H_{\omega^2}(1574)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 4+\omega 7+7}}(10)\) (exact)	\(g_{\omega^{\omega^2 4+\omega 7+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{948}\) (exact) 	\(1\times10^{948}\) (exact)
Arrow notation 	\(10\uparrow 948\) (exact) 	\(10\uparrow 948\) (exact)
Steinhaus-Moser Notation 	369[3] 	370[3]
Chained arrow notation 	\(10\rightarrow 948\) (exact) 	\(10\rightarrow 948\) (exact)
Taro's multivariable Ackermann function	A(3,3146) 	A(3,3147)
BEAF & Bird's array notation 	{10,948} (exact) 	{10,948} (exact)
Hyper-E notation 	E948 (exact) 	E948 (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)(369) 	m(1)(370)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[71] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[72]
Fast-growing hierarchy 	\(f_2(3137)\) 	\(f_2(3138)\)
Hardy hierarchy 	\(H_{\omega^2}(3137)\) 	\(H_{\omega^2}(3138)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 9+\omega 4+8}}(10)\) (exact)	\(g_{\omega^{\omega^2 9+\omega 4+8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers