Apocalyptetra number

Apocalyptetra numbers are numbers of the form 4n containing the digits 666 in their decimal expansions.https://sites.google.com/site/aarexnumbers/home/full-book
The smallest apocalytetra number is \(4^{96}\) :
Because all powers of 4 are also powers of 2, apocalyptetra numbers are a subset of the apocalyptic numbers.
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===See also===
Category:Numbers
Category:Numbers by Aarex Tiaokhiao
Category:Series
Category:Powers of 2