The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A285226 Primes with integer arithmetic mean of digits = 5 in base 10. 6
5, 19, 37, 73, 1289, 1487, 1559, 1667, 1847, 1973, 2099, 2297, 2459, 2477, 2549, 2657, 2693, 2729, 2819, 2837, 2909, 2927, 2963, 3089, 3359, 3449, 3467, 3539, 3557, 3593, 3719, 3863, 3881, 3917, 4079, 4259, 4349, 4457, 4493, 4547, 4583, 4637, 4673, 4691, 4817 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Prime@ Range@ PrimePi@ 5000, Mean@ IntegerDigits@ # == 5 &] (* Michael De Vlieger, Apr 22 2017 *)
PROG
(Magma) [n: n in [1..100000] | IsPrime(n) and &+Intseq(n) mod #Intseq(n) eq 0 and &+Intseq(n) / #Intseq(n) eq 5]
CROSSREFS
Primes from A061388. 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), this sequence (k = 5), A285227 (k = 7), A285228 (k = 8).
Sequence in context: A232057 A031093 A297750 * A146861 A068963 A257929
KEYWORD
nonn,base
AUTHOR
Jaroslav Krizek, Apr 19 2017
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 19 14:45 EDT 2024. Contains 372698 sequences. (Running on oeis4.)