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

1, 3, 10, 24

Offset: 1

Author

Jaroslav Krizek, Nov 03 2013

Keywords

• nonn
• base
• fini
• full
• less

Comments

Sequence is finite with 4 terms.

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

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

Numbers k such that A182627(k) = k.

Examples

			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.