Guppyplex

Guppyplex (also called googolsextigong) is equal to 101020 = E20#2 = EE20 using Hyper-E notation. The name was coined by Sbiis Saibian. It is equal to 1 followed by guppy (100 quintillion) zeroes. It is 1020+1 digits long.
Username5243 calls this number goovolplex, and it's equal to 10[1]10[1]20 in Username5243's Array Notation, as an intended value.Part 1 - My Large Numbers
Writing down the full decimal expansion would take 1014 books of 400 pages each, with 2,500 digits on each page (except for the first, which would have 2,501).
== Etymology ==
The name of this number is formed by appending the plex suffix to the number guppy.
== Names in -illion systems ==
In the short scale, it is also called:
According to Landon Curt Noll's The English name of a number, guppyplex is also known as:
== Approximations in other notations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{100,000,000,000,000,000,000}\)	\(1\times10^{100,000,000,000,000,000,000}\)
Arrow notation 	\(10\uparrow10\uparrow20\) 	\(10\uparrow10\uparrow20\)
Down-arrow notation 	\(10\downarrow\downarrow21\) 	\(10\downarrow\downarrow21\)
Steinhaus-Moser Notation 	15[3][3] 	16[3][3]
Copy notation 	9[9[20]] 	1[1[21]]
H* function 	H(33H(5)) 	H(34H(5))
Taro's multivariable Ackermann function	A(3,A(3,65)) 	A(3,A(3,66))
Pound-Star Notation 	#*((1))*(3)*17 	#*((1))*(2,1,4)*3
BEAF 	{10,{10,20}} 	{10,{10,20}}
Bashicu matrix system 	(0)(1)[8] 	(0)(1)[9]
Hyperfactorial array notation 	(20!)! 	(21!)!
Fast-growing hierarchy 	\(f_2(f_2(62))\) 	\(f_2(f_2(63))\)
Hardy hierarchy 	\(H_{\omega^22}(62)\) 	\(H_{\omega^22}(63)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega2}}}(10)\) 	\(g_{\omega^{\omega^{\omega2}}}(10)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 3
Category:Numbers by Sbiis Saibian
Category:Hyper-E numbers
Category:Googol series
Category:Animal-based name
Category:Lower class 3
Category:Middle class 3
Category:Guppy regiment