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A106807
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Primes with digit sum = 67.
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5
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59899999, 69899899, 69899989, 69979999, 69997999, 69999799, 77899999, 78997999, 78998989, 78999889, 78999979, 79699999, 79879999, 79889899, 79979899, 79979989, 79988899, 79989979, 79996999, 79997899, 79997989
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OFFSET
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1,1
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COMMENTS
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499999909 is the smallest term that contains 0 as a digit. - Altug Alkan, Mar 25 2018
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LINKS
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MAPLE
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F:= proc(t, d)
if d = 1 then
if t<=9 then return [t] else return [] fi
fi;
if t > 9*d then return [] fi;
[seq(op(map(x -> a*10^(d-1)+x, procname(t-a, d-1))), a=0..min(9, t))]
end proc:
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MATHEMATICA
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Select[Prime[Range[600000]], Total[IntegerDigits[#]]==67 &] (* Vincenzo Librandi, Jul 09 2014 *)
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PROG
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(Magma) [p: p in PrimesUpTo(90000000) | &+Intseq(p) eq 67]; // Vincenzo Librandi, Jul 09 2014
(PARI) isok(n) = isprime(n) && (sumdigits(n) == 67); \\ Altug Alkan, Mar 25 2018
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CROSSREFS
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Cf. similar sequences listed in A244018.
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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