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13125065 = 523611871
BaseRepresentation
bin110010000100…
…010111001001
3220200211012112
4302010113021
511330000230
61145152105
7216363332
oct62042711
926624175
1013125065
117455068
12448b635
132947115
141a59289
151243d95
hexc845c9

13125065 has 16 divisors (see below), whose sum is σ = 16713216. Its totient is φ = 9873600.

The previous prime is 13125061. The next prime is 13125083. The reversal of 13125065 is 56052131.

It is not a de Polignac number, because 13125065 - 22 = 13125061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13125065.

It is not an unprimeable number, because it can be changed into a prime (13125061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6080 + ... + 7950.

It is an arithmetic number, because the mean of its divisors is an integer number (1044576).

Almost surely, 213125065 is an apocalyptic number.

It is an amenable number.

13125065 is a deficient number, since it is larger than the sum of its proper divisors (3588151).

13125065 is a wasteful number, since it uses less digits than its factorization.

13125065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13125065 is about 3622.8531573885. The cubic root of 13125065 is about 235.8850884121.

Adding to 13125065 its reverse (56052131), we get a palindrome (69177196).

The spelling of 13125065 in words is "thirteen million, one hundred twenty-five thousand, sixty-five".

Divisors: 1 5 23 61 115 305 1403 1871 7015 9355 43033 114131 215165 570655 2625013 13125065