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Search: id:A069709
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| A069709 |
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Primes with arithmetic mean of digits an integer (sum of digits = a multiple of number of digits). |
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+0
4
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| 2, 3, 5, 7, 11, 13, 17, 19, 31, 37, 53, 59, 71, 73, 79, 97, 1021, 1061, 1069, 1087, 1151, 1201, 1223, 1249, 1289, 1429, 1447, 1483, 1487, 1511, 1559, 1601, 1609, 1627, 1663, 1667, 1753, 1847, 1861, 1933, 1951, 1973, 1999, 2011, 2099, 2141, 2213, 2239, 2293
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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Do[p = Prime[n]; If[ IntegerQ[ Apply[ Plus, IntegerDigits[p]] / Floor[ Log[10, p] + 1]], Print[p]], {n, 1, 10^3}]
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CROSSREFS
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Cf. A069710, A069711, A069712.
Sequence in context: A117843 A068192 A002200 this_sequence A144755 A069090 A088415
Adjacent sequences: A069706 A069707 A069708 this_sequence A069710 A069711 A069712
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KEYWORD
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nonn,base
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 08 2002
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EXTENSIONS
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Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 12 2002
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