A231116 Numbers n such that the total number of digits of all the divisors of n written in base 2 is equal to n.

1, 3, 10, 24

Offset

1,2

Comments

Sequence is finite with 4 terms.

Numbers n such that the concatenation of their divisors written in base 2 contains n digits.

Subsequence of finite sequence: 1, 2, 3, 4, 6, 8, 10, 12, 24 (numbers n such that the total number of digits of all the divisors of n written in base 2 is greater than or equal to n).

Numbers n such that A182627(n) = n.

Links

Table of n, a(n) for n=1..4.

Example

24 is in the sequence because the concatenation of the divisors of 24 in base 2 [(1, 10, 11, 100, 110, 1000, 1100, 11000) -> 110111001101000110011000] contains 24 digits.

Crossrefs

Cf. A182622, A182627.

Sequence in context: A105861 A228493 A041327 * A272953 A259443 A293405

Adjacent sequences: A231113 A231114 A231115 * A231117 A231118 A231119

Keyword

nonn,base,fini,full,less

Author

Jaroslav Krizek, Nov 03 2013

Status

approved