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12530664 = 2332792203
BaseRepresentation
bin101111110011…
…001111101000
3212120121211200
4233303033220
511201440124
61124324200
7211336356
oct57631750
925517750
1012530664
117089523
124243660
1327996c3
1419427d6
151177bc9
hexbf33e8

12530664 has 48 divisors (see below), whose sum is σ = 34382400. Its totient is φ = 4122144.

The previous prime is 12530659. The next prime is 12530677. The reversal of 12530664 is 46603521.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4587 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (716300).

Almost surely, 212530664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12530664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17191200).

12530664 is an abundant number, since it is smaller than the sum of its proper divisors (21851736).

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

12530664 is a wasteful number, since it uses less digits than its factorization.

12530664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 12530664 is about 3539.8677941415. The cubic root of 12530664 is about 232.2690596199.

The spelling of 12530664 in words is "twelve million, five hundred thirty thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 79 158 237 316 474 632 711 948 1422 1896 2203 2844 4406 5688 6609 8812 13218 17624 19827 26436 39654 52872 79308 158616 174037 348074 522111 696148 1044222 1392296 1566333 2088444 3132666 4176888 6265332 12530664