Unnonagintanongentillion

An unnonagintanongentillion is equal to \(10^{2976}\) in the short scale and \(10^{5946}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 991st -illion number.
In the long scale, \(10^{2976}\) is called senonagintaquadringentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2976}\) (exact) 	\(1\times10^{2976}\) (exact)
Arrow notation 	\(10\uparrow 2976\) (exact) 	\(10\uparrow 2976\) (exact)
Steinhaus-Moser Notation 	993[3] 	994[3]
Chained arrow notation 	\(10\rightarrow 2976\) (exact) 	\(10\rightarrow 2976\) (exact)
Taro's multivariable Ackermann function	A(3,9883) 	A(3,9884)
BEAF & Bird's array notation 	{10,2976} (exact) 	{10,2976} (exact)
Hyper-E notation 	E2976 (exact) 	E2976 (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)(993) 	m(1)(994)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(9872)\) 	\(f_2(9873)\)
Hardy hierarchy 	\(H_{\omega^2}(9872)\) 	\(H_{\omega^2}(9873)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 9+\omega 7+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 9+\omega 7+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{5946}\) (exact) 	\(1\times10^{5946}\) (exact)
Arrow notation 	\(10\uparrow 5946\) (exact) 	\(10\uparrow 5946\) (exact)
Steinhaus-Moser Notation 	1823[3] 	1824[3]
Chained arrow notation 	\(10\rightarrow 5946\) (exact) 	\(10\rightarrow 5946\) (exact)
Taro's multivariable Ackermann function	A(3,19749) 	A(3,19750)
BEAF & Bird's array notation 	{10,5946} (exact) 	{10,5946} (exact)
Hyper-E notation 	E5946 (exact) 	E5946 (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)(1823) 	m(1)(1824)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(19737)\) 	\(f_2(19738)\)
Hardy hierarchy 	\(H_{\omega^2}(19737)\) 	\(H_{\omega^2}(19738)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 5+\omega^2 9+\omega 4+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 5+\omega^2 9+\omega 4+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers