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12756884 = 227455603
BaseRepresentation
bin110000101010…
…011110010100
3220000010011012
4300222132110
511231210014
61133231352
7213301040
oct60523624
926003135
1012756884
117223488
124332558
13284866a
1419a1020
1511bec3e
hexc2a794

12756884 has 12 divisors (see below), whose sum is σ = 25513824. Its totient is φ = 5467224.

The previous prime is 12756883. The next prime is 12756907. The reversal of 12756884 is 48865721.

12756884 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227774 + ... + 227829.

It is an arithmetic number, because the mean of its divisors is an integer number (2126152).

Almost surely, 212756884 is an apocalyptic number.

12756884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12756884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12756884 is a wasteful number, since it uses less digits than its factorization.

12756884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455614 (or 455612 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 12756884 is about 3571.6780370017. The cubic root of 12756884 is about 233.6584737040.

The spelling of 12756884 in words is "twelve million, seven hundred fifty-six thousand, eight hundred eighty-four".

Divisors: 1 2 4 7 14 28 455603 911206 1822412 3189221 6378442 12756884