A260904 Prime numbers such that sum of digits in base 16 equals product of digits in base 16.

2, 3, 5, 7, 11, 13, 4673, 5153, 8513, 16673, 17895719, 17899799, 17985809, 18288929, 34697489, 40964369, 118563089, 286337041, 286359841, 293675281, 403775761, 554766721, 554795281, 73303933201, 74109227281, 1172812415521, 1172812443937, 1172812468507

Offset

1,1

Links

Chai Wah Wu, Table of n, a(n) for n = 1..6023

Example

16673_10 = 4121_16 is prime and the sum of digits of 4121 equals the product of digits.

Mathematica

Select[Prime@ Range[10^7], Total@ # == Times @@ # &@ IntegerDigits[#, 16] &] (* Michael De Vlieger, Nov 18 2015 *)

Crossrefs

Cf. A066306.

Sequence in context: A029982 A292238 A289863 * A245808 A252797 A325333

Adjacent sequences: A260901 A260902 A260903 * A260905 A260906 A260907

Keyword

nonn,base

Author

Chai Wah Wu, Nov 17 2015

Status

approved