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12885492 = 2231073791
BaseRepresentation
bin110001001001…
…110111110100
3220020122120110
4301021313310
511244313432
61140103020
7214345014
oct61116764
926218513
1012885492
117301074
124394a70
132892069
1419d5c44
1511e7dcc
hexc49df4

12885492 has 12 divisors (see below), whose sum is σ = 30066176. Its totient is φ = 4295160.

The previous prime is 12885469. The next prime is 12885493. The reversal of 12885492 is 29458821.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12885492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12885493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536884 + ... + 536907.

Almost surely, 212885492 is an apocalyptic number.

12885492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12885492 is an abundant number, since it is smaller than the sum of its proper divisors (17180684).

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

12885492 is a wasteful number, since it uses less digits than its factorization.

12885492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073798 (or 1073796 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 12885492 is about 3589.6367504248. The cubic root of 12885492 is about 234.4410557990.

The spelling of 12885492 in words is "twelve million, eight hundred eighty-five thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 1073791 2147582 3221373 4295164 6442746 12885492