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13163975 = 521147869
BaseRepresentation
bin110010001101…
…110111000111
3220202210120122
4302031313013
511332221400
61150052155
7216614636
oct62156707
926683518
1013163975
117481320
1244aa05b
13295ba46
141a6951d
151250685
hexc8ddc7

13163975 has 12 divisors (see below), whose sum is σ = 17807640. Its totient is φ = 9573600.

The previous prime is 13163963. The next prime is 13163989. The reversal of 13163975 is 57936131.

It is not a de Polignac number, because 13163975 - 212 = 13159879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23660 + ... + 24209.

It is an arithmetic number, because the mean of its divisors is an integer number (1483970).

Almost surely, 213163975 is an apocalyptic number.

13163975 is a deficient number, since it is larger than the sum of its proper divisors (4643665).

13163975 is a wasteful number, since it uses less digits than its factorization.

13163975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47890 (or 47885 counting only the distinct ones).

The product of its digits is 17010, while the sum is 35.

The square root of 13163975 is about 3628.2192601881. The cubic root of 13163975 is about 236.1179566899.

The spelling of 13163975 in words is "thirteen million, one hundred sixty-three thousand, nine hundred seventy-five".

Divisors: 1 5 11 25 55 275 47869 239345 526559 1196725 2632795 13163975