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A113707 Numbers k such that the base-10 representation of sigma(k) is a cyclic permutation of the base-10 representation of k. 0
1, 69, 609, 196833, 241605, 440503, 2374119, 2841633, 3256479, 5529975 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

sigma(196833) = 331968.

MATHEMATICA

lst = {}; Do[s = ToString@n; d = ToString@DivisorSigma[1, n]; If[StringLength@d == StringLength@d && {}!= StringPosition[s<>s, d], AppendTo[lst, n]], {n, 10^6}]; lst

CROSSREFS

Cf. A000203.

Sequence in context: A251003 A211692 A264288 * A259398 A093269 A108147

Adjacent sequences:  A113704 A113705 A113706 * A113708 A113709 A113710

KEYWORD

base,nonn,more

AUTHOR

Giovanni Resta, Jan 26 2006

STATUS

approved

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Last modified July 1 16:27 EDT 2022. Contains 354973 sequences. (Running on oeis4.)