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12887652 = 2234212551
BaseRepresentation
bin110001001010…
…011001100100
3220020202112110
4301022121210
511244401102
61140121020
7214354221
oct61123144
926222473
1012887652
117302758
124396170
13289303b
1419d6948
1511e886c
hexc4a664

12887652 has 24 divisors (see below), whose sum is σ = 30154432. Its totient is φ = 4284000.

The previous prime is 12887627. The next prime is 12887657. The reversal of 12887652 is 25678821.

It is a self number, because there is not a number n which added to its sum of digits gives 12887652.

It is not an unprimeable number, because it can be changed into a prime (12887657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3777 + ... + 6327.

Almost surely, 212887652 is an apocalyptic number.

12887652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12887652 is an abundant number, since it is smaller than the sum of its proper divisors (17266780).

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

12887652 is a wasteful number, since it uses less digits than its factorization.

12887652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2977 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 12887652 is about 3589.9376039146. The cubic root of 12887652 is about 234.4541548820.

The spelling of 12887652 in words is "twelve million, eight hundred eighty-seven thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 421 842 1263 1684 2526 2551 5052 5102 7653 10204 15306 30612 1073971 2147942 3221913 4295884 6443826 12887652