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13163913 = 327223937
BaseRepresentation
bin110010001101…
…110110001001
3220202210111100
4302031312021
511332221123
61150052013
7216614520
oct62156611
926683440
1013163913
117481274
1244aa009
13295b9c9
141a694b7
151250643
hexc8dd89

13163913 has 24 divisors (see below), whose sum is σ = 21851648. Its totient is φ = 7480512.

The previous prime is 13163879. The next prime is 13163963. The reversal of 13163913 is 31936131.

13163913 is a `hidden beast` number, since 13 + 1 + 639 + 13 = 666.

13163913 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13163913 - 210 = 13162889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13163963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13581 + ... + 14517.

Almost surely, 213163913 is an apocalyptic number.

It is an amenable number.

13163913 is a deficient number, since it is larger than the sum of its proper divisors (8687735).

13163913 is a wasteful number, since it uses less digits than its factorization.

13163913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1170 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 13163913 is about 3628.2107160417. The cubic root of 13163913 is about 236.1175859980.

The spelling of 13163913 in words is "thirteen million, one hundred sixty-three thousand, nine hundred thirteen".

Divisors: 1 3 7 9 21 63 223 669 937 1561 2007 2811 4683 6559 8433 14049 19677 59031 208951 626853 1462657 1880559 4387971 13163913