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13163908 = 223290977
BaseRepresentation
bin110010001101…
…110110000100
3220202210111011
4302031312010
511332221113
61150052004
7216614512
oct62156604
926683434
1013163908
11748126a
1244aa004
13295b9c4
141a694b2
15125063d
hexc8dd84

13163908 has 6 divisors (see below), whose sum is σ = 23036846. Its totient is φ = 6581952.

The previous prime is 13163879. The next prime is 13163963. The reversal of 13163908 is 80936131.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 73984 = 3618^2 + 272^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13163908.

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 as a sum of consecutive naturals, namely, 1645485 + ... + 1645492.

Almost surely, 213163908 is an apocalyptic number.

It is an amenable number.

13163908 is a deficient number, since it is larger than the sum of its proper divisors (9872938).

13163908 is a wasteful number, since it uses less digits than its factorization.

13163908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290981 (or 3290979 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13163908 is about 3628.2100269968. The cubic root of 13163908 is about 236.1175561035.

The spelling of 13163908 in words is "thirteen million, one hundred sixty-three thousand, nine hundred eight".

Divisors: 1 2 4 3290977 6581954 13163908