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13252656 = 24317109149
BaseRepresentation
bin110010100011…
…100000110000
3220221022020010
4302203200300
511343041111
61152014520
7220434324
oct62434060
926838203
1013252656
117531a0a
124531440
132990211
141a8d984
15126baa6
hexca3830

13252656 has 80 divisors (see below), whose sum is σ = 36828000. Its totient is φ = 4091904.

The previous prime is 13252627. The next prime is 13252661. The reversal of 13252656 is 65625231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88870 + ... + 89018.

It is an arithmetic number, because the mean of its divisors is an integer number (460350).

Almost surely, 213252656 is an apocalyptic number.

13252656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13252656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18414000).

13252656 is an abundant number, since it is smaller than the sum of its proper divisors (23575344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13252656 is a wasteful number, since it uses less digits than its factorization.

13252656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 280 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 13252656 is about 3640.4197560172. The cubic root of 13252656 is about 236.6469846314.

Adding to 13252656 its reverse (65625231), we get a palindrome (78877887).

The spelling of 13252656 in words is "thirteen million, two hundred fifty-two thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 109 136 149 204 218 272 298 327 408 436 447 596 654 816 872 894 1192 1308 1744 1788 1853 2384 2533 2616 3576 3706 5066 5232 5559 7152 7412 7599 10132 11118 14824 15198 16241 20264 22236 29648 30396 32482 40528 44472 48723 60792 64964 88944 97446 121584 129928 194892 259856 276097 389784 552194 779568 828291 1104388 1656582 2208776 3313164 4417552 6626328 13252656