Octoviginticentillion

An octoviginticentillion is equal to \(10^{387}\) in the short scale and \(10^{768}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 128th -illion number.
In the long scale, \(10^{387}\) is called quattuorsexagintilliard.
SuperJedi224 called this number epi-bitillion defined by H(27) = H(128) = 10387, where H(x) = 103x+3.-Illions - Almost Infinite
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{387}\) (exact) 	\(1\times10^{387}\) (exact)
Arrow notation 	\(10\uparrow 387\) (exact) 	\(10\uparrow 387\) (exact)
Steinhaus-Moser Notation 	172[3] 	173[3]
Chained arrow notation 	\(10\rightarrow 387\) (exact) 	\(10\rightarrow 387\) (exact)
Taro's multivariable Ackermann function	A(3,1282) 	A(3,1283)
BEAF & Bird's array notation 	{10,387} (exact) 	{10,387} (exact)
Hyper-E notation 	E387 (exact) 	E387 (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)(172) 	m(1)(173)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)[32] 	(0)(0)(0)(0)(0)(0)(0)(0)[33]
Copy notation 	9[387] 	10[194]
Pound-Star Notation 	#*((1904))*12 	#*((1905))*12
Hyperfactorial array notation 	205! 	206!
Strong array notation 	s(10,387) 	s(10,387)
Fast-growing hierarchy 	\(f_2(1275)\) 	\(f_2(1276)\)
Hardy hierarchy 	\(H_{\omega^2}(1275)\) 	\(H_{\omega^2}(1276)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 3+\omega 8+7}}(10)\) (exact)	\(g_{\omega^{\omega^2 3+\omega 8+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{768}\) (exact) 	\(1\times10^{768}\) (exact)
Arrow notation 	\(10\uparrow 768\) (exact) 	\(10\uparrow 768\) (exact)
Steinhaus-Moser Notation 	308[3] 	309[3]
Chained arrow notation 	\(10\rightarrow 768\) (exact) 	\(10\rightarrow 768\) (exact)
Taro's multivariable Ackermann function	A(3,2548) 	A(3,2549)
BEAF & Bird's array notation 	{10,768} (exact) 	{10,768} (exact)
Hyper-E notation 	E768 (exact) 	E768 (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)(308) 	m(1)(309)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[31] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[32]
Fast-growing hierarchy 	\(f_2(2539)\) 	\(f_2(2540)\)
Hardy hierarchy 	\(H_{\omega^2}(2539)\) 	\(H_{\omega^2}(2540)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 7+\omega 6+8}}(10)\) (exact)	\(g_{\omega^{\omega^2 7+\omega 6+8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers