A180015 - OEIS

A180015

List of Armstrong (narcissistic) numbers in base 8 that are prime (written in base 10).

2, 3, 5, 7, 307, 433, 25639, 212419, 1122179

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

EXAMPLE

The term 25639 is equal to 62047 in base 8. 62047 has 5 digits, and 6^5 + 2^5 + 0^5 + 4^5 + 7^5 = 62047 (in base 8) = 25639 (in base 10).

CROSSREFS

KEYWORD

base,fini,full,nonn

AUTHOR

Robin James Kerrison (rjk1994(AT)gmail.com), Aug 06 2010

STATUS

approved