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13160165 = 5532937
BaseRepresentation
bin110010001100…
…111011100101
3220202121100112
4302030323211
511332111130
61150022405
7216600554
oct62147345
926677315
1013160165
117479477
1244a7a05
13295a0a5
141a67d9b
15124e495
hexc8cee5

13160165 has 12 divisors (see below), whose sum is σ = 16112964. Its totient is φ = 10318464.

The previous prime is 13160149. The next prime is 13160177. The reversal of 13160165 is 56106131.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 185761 + 12974404 = 431^2 + 3602^2 .

It is not a de Polignac number, because 13160165 - 24 = 13160149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13160165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13577 + ... + 14513.

It is an arithmetic number, because the mean of its divisors is an integer number (1342747).

Almost surely, 213160165 is an apocalyptic number.

It is an amenable number.

13160165 is a deficient number, since it is larger than the sum of its proper divisors (2952799).

13160165 is an frugal number, since it uses more digits than its factorization.

13160165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 13160165 is about 3627.6941712333. The cubic root of 13160165 is about 236.0951749131.

Adding to 13160165 its reverse (56106131), we get a palindrome (69266296).

The spelling of 13160165 in words is "thirteen million, one hundred sixty thousand, one hundred sixty-five".

Divisors: 1 5 53 265 937 2809 4685 14045 49661 248305 2632033 13160165