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12897124 = 2219414139
BaseRepresentation
bin110001001100…
…101101100100
3220021020112021
4301030231210
511300201444
61140232524
7214423642
oct61145544
926236467
1012897124
117309889
12439b744
132897446
1419da192
1511eb584
hexc4cb64

12897124 has 24 divisors (see below), whose sum is σ = 24343200. Its totient is φ = 5958720.

The previous prime is 12897103. The next prime is 12897163. The reversal of 12897124 is 42179821.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12897124.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (1014300).

Almost surely, 212897124 is an apocalyptic number.

It is an amenable number.

12897124 is a deficient number, since it is larger than the sum of its proper divisors (11446076).

12897124 is a wasteful number, since it uses less digits than its factorization.

12897124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203 (or 4201 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 12897124 is about 3591.2566045884. The cubic root of 12897124 is about 234.5115795113.

The spelling of 12897124 in words is "twelve million, eight hundred ninety-seven thousand, one hundred twenty-four".

Divisors: 1 2 4 19 38 41 76 82 164 779 1558 3116 4139 8278 16556 78641 157282 169699 314564 339398 678796 3224281 6448562 12897124