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12919136 = 25487829
BaseRepresentation
bin110001010010…
…000101100000
3220022100201112
4301102011200
511301403021
61140522452
7214545056
oct61220540
926270645
1012919136
11732437a
1243b0428
1328a4479
141a041d6
151202d5b
hexc52160

12919136 has 24 divisors (see below), whose sum is σ = 25517520. Its totient is φ = 6438528.

The previous prime is 12919117. The next prime is 12919163. The reversal of 12919136 is 63191921.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15170 + ... + 15998.

It is an arithmetic number, because the mean of its divisors is an integer number (1063230).

Almost surely, 212919136 is an apocalyptic number.

12919136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12919136 is a deficient number, since it is larger than the sum of its proper divisors (12598384).

12919136 is an equidigital number, since it uses as much as digits as its factorization.

12919136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1318 counting only the distinct ones).

The product of its digits is 2916, while the sum is 32.

The square root of 12919136 is about 3594.3199634980. The cubic root of 12919136 is about 234.6449202185.

The spelling of 12919136 in words is "twelve million, nine hundred nineteen thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 32 487 829 974 1658 1948 3316 3896 6632 7792 13264 15584 26528 403723 807446 1614892 3229784 6459568 12919136