Octogintanongentillion

An octogintanongentillion is equal to \(10^{2943}\) in the short scale and \(10^{5880}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 980th -illion number.
In the long scale, \(10^{2943}\) is called nonagintaquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2943}\) (exact) 	\(1\times10^{2943}\) (exact)
Arrow notation 	\(10\uparrow 2943\) (exact) 	\(10\uparrow 2943\) (exact)
Steinhaus-Moser Notation 	983[3] 	984[3]
Chained arrow notation 	\(10\rightarrow 2943\) (exact) 	\(10\rightarrow 2943\) (exact)
Taro's multivariable Ackermann function	A(3,9773) 	A(3,9774)
BEAF & Bird's array notation 	{10,2943} (exact) 	{10,2943} (exact)
Hyper-E notation 	E2943 (exact) 	E2943 (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)(983) 	m(1)(984)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(9763)\) 	\(f_2(9764)\)
Hardy hierarchy 	\(H_{\omega^2}(9763)\) 	\(H_{\omega^2}(9764)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 9+\omega 4+3}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 9+\omega 4+3}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{5880}\) (exact) 	\(1\times10^{5880}\) (exact)
Arrow notation 	\(10\uparrow 5880\) (exact) 	\(10\uparrow 5880\) (exact)
Steinhaus-Moser Notation 	1805[3] 	1806[3]
Chained arrow notation 	\(10\rightarrow 5880\) (exact) 	\(10\rightarrow 5880\) (exact)
Taro's multivariable Ackermann function	A(3,19529) 	A(3,19530)
BEAF & Bird's array notation 	{10,5880} (exact) 	{10,5880} (exact)
Hyper-E notation 	E5880 (exact) 	E5880 (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)(1805) 	m(1)(1806)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(19518)\) 	\(f_2(19519)\)
Hardy hierarchy 	\(H_{\omega^2}(19518)\) 	\(H_{\omega^2}(19519)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 5+\omega^2 8+\omega 8}}(10)\) (exact)	\(g_{\omega^{\omega^3 5+\omega^2 8+\omega 8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers