Tetrecillion

The tetrecillion is equal to \(10^{3\left(10^{42}\right)+3}\) or \(10^{3\text{ tredecillion }3}\).Illion Numbers by Jonathan Bowers The term was coined by Jonathan Bowers. It is 3×1042+4 digits long.
Tetrecillion is also known as one millia^14tillion according to Landon Curt Noll's The English name of a number.
SuperJedi224 coined atto-yoctillion for this number, and is equal to H(1042) using H* function.-Illions - Almost Infinite (retrieved 2021-05-02 01:14 UTC)
== Etymology ==
The name of this number is based on the suffix "-illion" and the prefix "tetreco-".
== Approximations in other notations ==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow42)\) 	\(1000\uparrow(1+10\uparrow42)\)
Down-arrow notation 	\(1000\downarrow\downarrow15\) 	\(165\downarrow\downarrow20\)
Steinhaus-Moser Notation 	28[3][3] 	29[3][3]
Copy notation 	2[2[43]] 	3[3[43]]
H* function 	H(H(13)) 	H(H(13))
Taro's multivariable Ackermann function	A(3,A(3,139)) 	A(3,A(3,140))
Pound-Star Notation 	#*((1))*(4,4,0,5)*4 	#*((1))*(8,3)*11
BEAF 	{1000,1+{10,42}} 	{1000,1+{10,42}}
Hyper-E notation 	E(3+3E42) 	E(3+3E42)
Bashicu matrix system 	(0)(1)[11] 	(0)(1)[12]
Hyperfactorial array notation 	(35!)! 	(36!)!
Fast-growing hierarchy 	\(f_2(f_2(135))\) 	\(f_2(f_2(136))\)
Hardy hierarchy 	\(H_{\omega^22}(135)\) 	\(H_{\omega^22}(136)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega4+2}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega4+2}3+3}}(10)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Jonathan Bowers
Category:Illion
Category:Class 3
Category:Middle class 3
Category:Tier 2 -illion numbers