Zettagross

Zettagross is equal to 14421 = 2,116,471,057,875,484,488,839,167,999,221,661,362,284,396,544. The term was coined by Instrumentalism.https://sites.google.com/view/gross-group-numbers It is 46 digits long.
== Approximations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(2.11647105\times10^{45}\)	\(2.11647105\times10^{45}\)
Arrow notation 	\(12\uparrow42\) 	\(12\uparrow42\)
Chained arrow notation 	\(12\rightarrow42\) 	\(12\rightarrow42\)
Steinhaus-Moser Notation 	30[3] 	31[3]
Copy notation 	2[46] 	3[46]
BEAF 	{12,42} 	{12,42}
Strong array notation 	s(12,42) 	s(12,42)
Hyperfactorial array notation	38! 	39!
Fast-growing hierarchy 	\(f_2(144)\) 	\(f_2(145)\)
Hardy hierarchy 	\(H_{\omega^2}(145)\) 	\(H_{\omega^2}(145)\)
Slow-growing hierarchy 	\(g_{\omega^{42 }}(12)\) 	\(g_{\omega^{42 }}(12)\)
Hyper-E notation 	E46 (about half) 	E47 (about 5x)
== Sources ==
Category:Class 2
Category:Numbers
Category:Powers of 12
Category:Numbers by Instrumentalism
Category:Numbers with 30 to 100 digits