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13161968 = 241097547
BaseRepresentation
bin110010001101…
…010111110000
3220202200211022
4302031113300
511332140333
61150035012
7216606041
oct62152760
926680738
1013161968
11747a866
1244a8a68
13295ab61
141a688c8
15124ec98
hexc8d5f0

13161968 has 20 divisors (see below), whose sum is σ = 25738680. Its totient is φ = 6519744.

The previous prime is 13161931. The next prime is 13161971. The reversal of 13161968 is 86916131.

13161968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2030 + ... + 5517.

It is an arithmetic number, because the mean of its divisors is an integer number (1286934).

Almost surely, 213161968 is an apocalyptic number.

It is an amenable number.

13161968 is a deficient number, since it is larger than the sum of its proper divisors (12576712).

13161968 is a wasteful number, since it uses less digits than its factorization.

13161968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664 (or 7658 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 13161968 is about 3627.9426676837. The cubic root of 13161968 is about 236.1059564437.

The spelling of 13161968 in words is "thirteen million, one hundred sixty-one thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 109 218 436 872 1744 7547 15094 30188 60376 120752 822623 1645246 3290492 6580984 13161968