Oct-tritillion

Oct-tritillion is equal to H(38) = H(6,561) = 1019,686.-Illions - Almost Infinite The name was coined by SuperJedi224.
== Decimal expansion ==
==Approximations==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{19\,686}\) 	\(1\times10^{19\,686}\)
Arrow notation 	\(10\uparrow19\,686\) 	\(10\uparrow19\,686\)
Steinhaus-Moser Notation 	5[3][3] 	6[3][3]
Copy notation 	9[19686] 	1[19687]
Taro's multivariable Ackermann function	A(3,65392) 	A(3,65393)
Pound-Star Notation 	#*((994))*70 	#*((995))*70
BEAF 	{10,19686} 	{10,19686}
Hyper-E notation 	E19,686 	E19,686
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Hyperfactorial array notation 	(7!)! 	(8!)!
Fast-growing hierarchy 	\(f_2(f_2(12))\) 	\(f_2(f_2(13))\)
Hardy hierarchy 	\(H_{\omega^22}(12)\) 	\(H_{\omega^22}(13)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^4+\omega^39+\omega^26+\omega8+6}}(10)\)	\(g_{\omega^{\omega^4+\omega^39+\omega^26+\omega8+6}}(10)\)
== Sources ==
Category:Class 2
Category:Numbers with 1000 to 1000000 digits