Vigintisescentillion

A vigintisescentillion is equal to \(10^{1863}\) in the short scale and \(10^{3720}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 620th -illion number.
In the long scale, \(10^{1863}\) is called decitrecentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1863}\) (exact) 	\(1\times10^{1863}\) (exact)
Arrow notation 	\(10\uparrow 1863\) (exact) 	\(10\uparrow 1863\) (exact)
Steinhaus-Moser Notation 	660[3] 	661[3]
Chained arrow notation 	\(10\rightarrow 1863\) (exact) 	\(10\rightarrow 1863\) (exact)
Taro's multivariable Ackermann function	A(3,6185) 	A(3,6186)
BEAF & Bird's array notation 	{10,1863} (exact) 	{10,1863} (exact)
Hyper-E notation 	E1863 (exact) 	E1863 (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)(660) 	m(1)(661)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6176)\) 	\(f_2(6177)\)
Hardy hierarchy 	\(H_{\omega^2}(6176)\) 	\(H_{\omega^2}(6177)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 8+\omega 6+3}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 8+\omega 6+3}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{3720}\) (exact) 	\(1\times10^{3720}\) (exact)
Arrow notation 	\(10\uparrow 3720\) (exact) 	\(10\uparrow 3720\) (exact)
Steinhaus-Moser Notation 	1207[3] 	1208[3]
Chained arrow notation 	\(10\rightarrow 3720\) (exact) 	\(10\rightarrow 3720\) (exact)
Taro's multivariable Ackermann function	A(3,12354) 	A(3,12355)
BEAF & Bird's array notation 	{10,3720} (exact) 	{10,3720} (exact)
Hyper-E notation 	E3720 (exact) 	E3720 (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)(1207) 	m(1)(1208)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(12343)\) 	\(f_2(12344)\)
Hardy hierarchy 	\(H_{\omega^2}(12343)\) 	\(H_{\omega^2}(12344)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 3+\omega^2 7+\omega 2}}(10)\) (exact)	\(g_{\omega^{\omega^3 3+\omega^2 7+\omega 2}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers