A083373 2n is equal to the sum of its divisors after the digits have been sorted in descending order (zeros dropped).

6, 37, 1212, 1530, 5055, 37680, 98918163, 149308749, 250094358

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Example

a(3)=1212 because the divisors of 1212 are [1, 2, 3, 4, 6, 12, 101, 202, 303, 404, 606, 1212] and 1+2+3+4+6+21+11+22+33+44+66+2211 = 2424 = 2*1212.

Crossrefs

Sequence in context: A283636 A211988 A285934 * A320988 A015492 A243843

Adjacent sequences: A083370 A083371 A083372 * A083374 A083375 A083376

Keyword

base,more,nonn

Author

Jason Earls, Jun 11 2003

Extensions

98918163, 149308749, 250094358 from Sean A. Irvine, Nov 19 2009

Status

approved