Apocalypse number

An apocalypse number is a number having 666 digits in its decimal expansion.Apocalypse Number -- from Wolfram MathWorld There exist - = 9 × apocalypse numbers.
The smallest apocalypse prime is + 123, while the smallest apocalypse prime containing the number 666 is + 166,657https://primes.utm.edu/curios/page.php?number_id=2690, and the largest apocalypse prime is − 1,157.http://primes.utm.edu/curios/page.php?number_id=2680http://primes.utm.edu/curios/page.php?number_id=2681
There are nine powers of single-digit numbers which are also apocalypse numbers (namely, , , , , , , , and ).
There are four f2(n) numbers which are also apocalypse numbers (namely, f2(2,198), f2(2,199), f2(2,200) and f2(2,201)).
There are two apocalyptic numbers which are also apocalypse numbers (namely, and ).
The 3184th (F3184 where F1=1, F2=1, Fn = Fn-1 + Fn-2) is an apocalypse number.Clifford Pickover. Keys to Infinity Wiley. 1995. ISBN 978-0471118572 p.97 Its decimal expansion is:3184th number in Fibonacci sequence 1,1,2,3,...
Finally, is also an apocalypse number.
== Sources ==
==See also==
Category:Numbers
Category:Series
Category:Class 2
Category:Numbers with 101 to 999 digits
ja:黙示数