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13264979 = 713211213
BaseRepresentation
bin110010100110…
…100001010011
3220221221010112
4302212201103
511343434404
61152151535
7220515260
oct62464123
926857115
1013264979
1175401a2
1245385ab
132995a00
141a94267
15127056e
hexca6853

13264979 has 12 divisors (see below), whose sum is σ = 16417296. Its totient is φ = 10494432.

The previous prime is 13264963. The next prime is 13265009. The reversal of 13264979 is 97946231.

It is not a de Polignac number, because 13264979 - 24 = 13264963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13264939) 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 11 ways as a sum of consecutive naturals, for example, 4424 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (1368108).

Almost surely, 213264979 is an apocalyptic number.

13264979 is a deficient number, since it is larger than the sum of its proper divisors (3152317).

13264979 is a wasteful number, since it uses less digits than its factorization.

13264979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11246 (or 11233 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 13264979 is about 3642.1118873533. Note that the first 3 decimals coincide. The cubic root of 13264979 is about 236.7203107476.

The spelling of 13264979 in words is "thirteen million, two hundred sixty-four thousand, nine hundred seventy-nine".

Divisors: 1 7 13 91 169 1183 11213 78491 145769 1020383 1894997 13264979