Barrejillion

Barrejillion is equal to \(10^{3\times 10^{3\times 10^{3\times{10^{66}}}} + 3}\)Extended Tier 4 to 6 illions. The term was coined by CompactStar and is part of his unofficial extension of Bower's -illion system which ended at multillion. 
In Noogai93's system, this number is called recillionGugology Wiki.
== Etymology ==
This name is derived from the addition of barrillion and mejillion.
== Approximations ==
Notation 	Expression
Up-arrow notation 	\(10 \uparrow (3 \times (10 \uparrow (3 \times (10 \uparrow (3\text{ unvigintillion}))))+3)\) (exact)
Chained arrow notation 	\(10 \rightarrow (3 \times (10 \rightarrow (3 \times (10 \uparrow (3\text{ unvigintillion}))))+3)\) (exact)
H* function 	H(H(H(H(20)-1)-1))
BEAF 	\(\{10,\{3\times \{10,3 \times \{10,3\text{ unvigintillion}\}\}+3\}\}\) (exact)
Munafo's ASCII-lexicographic ordering	p3_e066_3
== Sources ==
== See also ==
* Zillion Notation
* Extensible Illion System
Category:Numbers
Category:Class 5
Category:Illion
Category:Numbers and functions by CompactStar
Category:Tier 4 -illion numbers