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13011125 = 53104089
BaseRepresentation
bin110001101000…
…100010110101
3220111000220112
4301220202311
511312324000
61142512405
7215410211
oct61504265
926430815
1013011125
1173874a6
124435705
1329072ba
141a29941
151220235
hexc688b5

13011125 has 8 divisors (see below), whose sum is σ = 16238040. Its totient is φ = 10408800.

The previous prime is 13011121. The next prime is 13011133. The reversal of 13011125 is 52111031.

13011125 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 676 + 13010449 = 26^2 + 3607^2 .

It is not a de Polignac number, because 13011125 - 22 = 13011121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51920 + ... + 52169.

It is an arithmetic number, because the mean of its divisors is an integer number (2029755).

Almost surely, 213011125 is an apocalyptic number.

It is an amenable number.

13011125 is a deficient number, since it is larger than the sum of its proper divisors (3226915).

13011125 is an equidigital number, since it uses as much as digits as its factorization.

13011125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104104 (or 104094 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 13011125 is about 3607.0937054643. The cubic root of 13011125 is about 235.2005229773.

Adding to 13011125 its reverse (52111031), we get a palindrome (65122156).

The spelling of 13011125 in words is "thirteen million, eleven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 104089 520445 2602225 13011125