Search a number
-
+
13168285 = 513172701
BaseRepresentation
bin110010001110…
…111010011101
3220210000111021
4302032322131
511332341120
61150124141
7216633334
oct62167235
926700437
1013168285
117484589
1244b0651
1329609b0
141a6ad1b
151251aaa
hexc8ee9d

13168285 has 24 divisors (see below), whose sum is σ = 18103176. Its totient is φ = 9139200.

The previous prime is 13168271. The next prime is 13168297. The reversal of 13168285 is 58286131.

It can be written as a sum of positive squares in 12 ways, for example, as 337561 + 12830724 = 581^2 + 3582^2 .

It is not a de Polignac number, because 13168285 - 29 = 13167773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13168285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18435 + ... + 19135.

It is an arithmetic number, because the mean of its divisors is an integer number (754299).

Almost surely, 213168285 is an apocalyptic number.

It is an amenable number.

13168285 is a deficient number, since it is larger than the sum of its proper divisors (4934891).

13168285 is a wasteful number, since it uses less digits than its factorization.

13168285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 736 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 13168285 is about 3628.8131668632. The cubic root of 13168285 is about 236.1437229028.

The spelling of 13168285 in words is "thirteen million, one hundred sixty-eight thousand, two hundred eighty-five".

Divisors: 1 5 13 17 65 85 221 289 701 1105 1445 3505 3757 9113 11917 18785 45565 59585 154921 202589 774605 1012945 2633657 13168285