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A285228
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Primes with integer arithmetic mean of digits = 8 in base 10.
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6
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79, 97, 6899, 8699, 8969, 9689, 9887, 49999, 68899, 69997, 77899, 78889, 78979, 79699, 79987, 85999, 88789, 88897, 88969, 89599, 89689, 89779, 89797, 89959, 89977, 94999, 95989, 96799, 96979, 96997, 97789, 97879, 97987, 98689, 98779, 98869, 98887, 99679, 99787
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Jaroslav Krizek, Table of n, a(n) for n = 1..1000
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MATHEMATICA
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Select[Prime@ Range@ PrimePi[10^5], Mean@ IntegerDigits@ # == 8 &] (* Michael De Vlieger, Apr 22 2017 *)
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PROG
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(MAGMA) [n: n in [1..100000] | IsPrime(n) and &+Intseq(n) mod #Intseq(n) eq 0 and &+Intseq(n) / #Intseq(n) eq 8]
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CROSSREFS
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Primes from A061425. Subsequence of A069709.
Sequences of primes such that a(n) = k for k = 1, 2, 4, 5, 7 and 8: A069710 (k = 1), A285096 (k = 2), A285225 (k = 4), A285226 (k = 5), A285227 (k = 7), this sequence (k = 8).
Sequence in context: A044039 A065211 A106757 * A087537 A117840 A296012
Adjacent sequences: A285225 A285226 A285227 * A285229 A285230 A285231
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KEYWORD
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nonn,base
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AUTHOR
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Jaroslav Krizek, Apr 19 2017
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STATUS
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approved
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