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12508056 = 23321117929
BaseRepresentation
bin101111101101…
…101110011000
3212112110211100
4233231232120
511200224211
61124031400
7211213431
oct57555630
925473740
1012508056
117073540
124232560
13278c322
141938488
151171156
hexbedb98

12508056 has 96 divisors (see below), whose sum is σ = 39171600. Its totient is φ = 3563520.

The previous prime is 12508049. The next prime is 12508057. The reversal of 12508056 is 65080521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13000 + ... + 13928.

Almost surely, 212508056 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 12508056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19585800).

12508056 is an abundant number, since it is smaller than the sum of its proper divisors (26663544).

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

12508056 is a wasteful number, since it uses less digits than its factorization.

12508056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 12508056 is about 3536.6730128752. The cubic root of 12508056 is about 232.1292878267.

Adding to 12508056 its reverse (65080521), we get a palindrome (77588577).

The spelling of 12508056 in words is "twelve million, five hundred eight thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 11 12 17 18 22 24 33 34 36 44 51 66 68 72 88 99 102 132 136 153 187 198 204 264 306 374 396 408 561 612 748 792 929 1122 1224 1496 1683 1858 2244 2787 3366 3716 4488 5574 6732 7432 8361 10219 11148 13464 15793 16722 20438 22296 30657 31586 33444 40876 47379 61314 63172 66888 81752 91971 94758 122628 126344 142137 173723 183942 189516 245256 284274 347446 367884 379032 521169 568548 694892 735768 1042338 1137096 1389784 1563507 2084676 3127014 4169352 6254028 12508056