Unquadragintasescentillion

An unquadragintasescentillion is equal to \(10^{1926}\) in the short scale and \(10^{3846}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 641st -illion number.
In the long scale, \(10^{1926}\) is called unvigintitrecentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1926}\) (exact) 	\(1\times10^{1926}\) (exact)
Arrow notation 	\(10\uparrow 1926\) (exact) 	\(10\uparrow 1926\) (exact)
Steinhaus-Moser Notation 	679[3] 	680[3]
Chained arrow notation 	\(10\rightarrow 1926\) (exact) 	\(10\rightarrow 1926\) (exact)
Taro's multivariable Ackermann function	A(3,6395) 	A(3,6396)
BEAF & Bird's array notation 	{10,1926} (exact) 	{10,1926} (exact)
Hyper-E notation 	E1926 (exact) 	E1926 (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)(679) 	m(1)(680)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6385)\) 	\(f_2(6386)\)
Hardy hierarchy 	\(H_{\omega^2}(6385)\) 	\(H_{\omega^2}(6386)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 9+\omega 2+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 9+\omega 2+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{3846}\) (exact) 	\(1\times10^{3846}\) (exact)
Arrow notation 	\(10\uparrow 3846\) (exact) 	\(10\uparrow 3846\) (exact)
Steinhaus-Moser Notation 	1242[3] 	1243[3]
Chained arrow notation 	\(10\rightarrow 3846\) (exact) 	\(10\rightarrow 3846\) (exact)
Taro's multivariable Ackermann function	A(3,12773) 	A(3,12774)
BEAF & Bird's array notation 	{10,3846} (exact) 	{10,3846} (exact)
Hyper-E notation 	E3846 (exact) 	E3846 (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)(1242) 	m(1)(1243)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(12762)\) 	\(f_2(12763)\)
Hardy hierarchy 	\(H_{\omega^2}(12762)\) 	\(H_{\omega^2}(12763)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 3+\omega^2 8+\omega 4+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 3+\omega^2 8+\omega 4+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers