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12937899 = 3131572113
BaseRepresentation
bin110001010110…
…101010101011
3220100022110110
4301112222223
511303003044
61141145403
7214653552
oct61265253
926308413
1012937899
117337487
1243bb263
1328acb80
141a0ad99
1512086b9
hexc56aab

12937899 has 16 divisors (see below), whose sum is σ = 18704672. Its totient is φ = 7907328.

The previous prime is 12937877. The next prime is 12937913. The reversal of 12937899 is 99873921.

It is not a de Polignac number, because 12937899 - 29 = 12937387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12937829) 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 15 ways as a sum of consecutive naturals, for example, 5067 + ... + 7179.

It is an arithmetic number, because the mean of its divisors is an integer number (1169042).

Almost surely, 212937899 is an apocalyptic number.

12937899 is a deficient number, since it is larger than the sum of its proper divisors (5766773).

12937899 is a wasteful number, since it uses less digits than its factorization.

12937899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its digits is 244944, while the sum is 48.

The square root of 12937899 is about 3596.9291068910. The cubic root of 12937899 is about 234.7584601378.

The spelling of 12937899 in words is "twelve million, nine hundred thirty-seven thousand, eight hundred ninety-nine".

Divisors: 1 3 13 39 157 471 2041 2113 6123 6339 27469 82407 331741 995223 4312633 12937899