Unnonagintaducentillion

An unnonagintaducentillion is equal to \(10^{876}\) in the short scale and \(10^{1746}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 291st -illion number.
In the long scale, \(10^{876}\) is called sesquadragintacentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{876}\) (exact) 	\(1\times10^{876}\) (exact)
Arrow notation 	\(10\uparrow 876\) (exact) 	\(10\uparrow 876\) (exact)
Steinhaus-Moser Notation 	345[3] 	346[3]
Chained arrow notation 	\(10\rightarrow 876\) (exact) 	\(10\rightarrow 876\) (exact)
Taro's multivariable Ackermann function	A(3,2907) 	A(3,2908)
BEAF & Bird's array notation 	{10,876} (exact) 	{10,876} (exact)
Hyper-E notation 	E876 (exact) 	E876 (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)(345) 	m(1)(346)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[51] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[52]
Fast-growing hierarchy 	\(f_2(2898)\) 	\(f_2(2899)\)
Hardy hierarchy 	\(H_{\omega^2}(2898)\) 	\(H_{\omega^2}(2899)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 8+\omega 7+6}}(10)\) (exact)	\(g_{\omega^{\omega^2 8+\omega 7+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1746}\) (exact) 	\(1\times10^{1746}\) (exact)
Arrow notation 	\(10\uparrow 1746\) (exact) 	\(10\uparrow 1746\) (exact)
Steinhaus-Moser Notation 	624[3] 	625[3]
Chained arrow notation 	\(10\rightarrow 1746\) (exact) 	\(10\rightarrow 1746\) (exact)
Taro's multivariable Ackermann function	A(3,5797) 	A(3,5798)
BEAF & Bird's array notation 	{10,1746} (exact) 	{10,1746} (exact)
Hyper-E notation 	E1746 (exact) 	E1746 (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)(624) 	m(1)(625)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(5787)\) 	\(f_2(5788)\)
Hardy hierarchy 	\(H_{\omega^2}(5787)\) 	\(H_{\omega^2}(5788)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 7+\omega 4+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 7+\omega 4+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers