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12755388 = 2231062949
BaseRepresentation
bin110000101010…
…000110111100
3220000001002210
4300222012330
511231133023
61133220420
7213263502
oct60520674
926001083
1012755388
117222348
124331710
132847a89
1419a0672
1511be593
hexc2a1bc

12755388 has 12 divisors (see below), whose sum is σ = 29762600. Its totient is φ = 4251792.

The previous prime is 12755383. The next prime is 12755399. The reversal of 12755388 is 88355721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12755383) 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, 531463 + ... + 531486.

Almost surely, 212755388 is an apocalyptic number.

It is an amenable number.

12755388 is an abundant number, since it is smaller than the sum of its proper divisors (17007212).

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

12755388 is a wasteful number, since it uses less digits than its factorization.

12755388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062956 (or 1062954 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 12755388 is about 3571.4686054899. The cubic root of 12755388 is about 233.6493396359.

The spelling of 12755388 in words is "twelve million, seven hundred fifty-five thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 1062949 2125898 3188847 4251796 6377694 12755388