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A119894
Numbers k such that 2^k, 3^k, 5^k, 7^k and 11^k have even digit sum.
4
64, 90, 106, 168, 181, 185, 229, 242, 369, 407, 447, 470, 481, 503, 552, 568, 583, 612, 648, 657, 683, 684, 742, 758, 804, 811, 852, 863, 896, 915, 924, 928, 1000, 1004, 1068, 1103, 1113, 1126, 1182, 1402, 1410, 1412, 1420, 1428, 1473, 1483, 1484, 1546, 1566
OFFSET
1,1
MATHEMATICA
edsQ[n_]:=And@@EvenQ[Total[IntegerDigits[#]]&/@(Prime[Range[5]]^n)]; Select[Range[1600], edsQ] (* Harvey P. Dale, Apr 21 2011 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Zak Seidov, May 26 2006
STATUS
approved