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A234929 Primes which become cubes when the digits are rotated once to the left. 1

%I #13 Jan 04 2014 19:43:46

%S 251,3491,7219,10133,12979,20051,30491,54287,61757,205487,231443,

%T 300491,585737,714887,949303,1000133,1002979,1035791,1075357,1224809,

%U 2031443,2068147,3091267,3386989,5152087,5993837,6001757,6009733,6156089,6752953,7000219,7144289

%N Primes which become cubes when the digits are rotated once to the left.

%e The prime 7219 is in the list because 2197 = 13*13*13.

%o (PARI) rotl(a) = my(b,c,d); b=#Str(a); c=floor(a/(10^(b-1))); d=a-c*(10^(b-1)); 10*d+c

%o s=[]; forprime(n=2, 40000000, if(ispower(rotl(n),3), s=concat(s, n))); s

%o (Sage)

%o [i for i in primes_first_n(1000000) if Integer((int(str(i)[1:]+str(i)[:1]))).nth_root(3,True)[1]] # _Tom Edgar_, Jan 03 2014

%Y Cf. A234928.

%K nonn,base

%O 1,1

%A _Colin Barker_, Jan 01 2014

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