Vigintiquadringentillion

A vigintiquadringentillion is equal to \(10^{1263}\) in the short scale and \(10^{2520}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 420th -illion number.
In the long scale, \(10^{1263}\) is called deciducentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1263}\) (exact) 	\(1\times10^{1263}\) (exact)
Arrow notation 	\(10\uparrow 1263\) (exact) 	\(10\uparrow 1263\) (exact)
Steinhaus-Moser Notation 	472[3] 	473[3]
Chained arrow notation 	\(10\rightarrow 1263\) (exact) 	\(10\rightarrow 1263\) (exact)
Taro's multivariable Ackermann function	A(3,4192) 	A(3,4193)
BEAF & Bird's array notation 	{10,1263} (exact) 	{10,1263} (exact)
Hyper-E notation 	E1263 (exact) 	E1263 (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)(472) 	m(1)(473)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(4183)\) 	\(f_2(4184)\)
Hardy hierarchy 	\(H_{\omega^2}(4183)\) 	\(H_{\omega^2}(4184)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 2+\omega 6+3}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 2+\omega 6+3}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2520}\) (exact) 	\(1\times10^{2520}\) (exact)
Arrow notation 	\(10\uparrow 2520\) (exact) 	\(10\uparrow 2520\) (exact)
Steinhaus-Moser Notation 	858[3] 	859[3]
Chained arrow notation 	\(10\rightarrow 2520\) (exact) 	\(10\rightarrow 2520\) (exact)
Taro's multivariable Ackermann function	A(3,8368) 	A(3,8369)
BEAF & Bird's array notation 	{10,2520} (exact) 	{10,2520} (exact)
Hyper-E notation 	E2520 (exact) 	E2520 (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)(858) 	m(1)(859)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8358)\) 	\(f_2(8359)\)
Hardy hierarchy 	\(H_{\omega^2}(8358)\) 	\(H_{\omega^2}(8359)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 5+\omega 2}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 5+\omega 2}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers