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12864125 = 53102913
BaseRepresentation
bin110001000100…
…101001111101
3220012120021002
4301010221331
511243123000
61135420045
7214225511
oct61045175
926176232
1012864125
11729700a
124384625
132885411
1419cc141
1511e18d5
hexc44a7d

12864125 has 8 divisors (see below), whose sum is σ = 16054584. Its totient is φ = 10291200.

The previous prime is 12864097. The next prime is 12864127. The reversal of 12864125 is 52146821.

12864125 is digitally balanced in base 2, 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 2553604 + 10310521 = 1598^2 + 3211^2 .

It is not a de Polignac number, because 12864125 - 28 = 12863869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12864127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51332 + ... + 51581.

It is an arithmetic number, because the mean of its divisors is an integer number (2006823).

Almost surely, 212864125 is an apocalyptic number.

It is an amenable number.

12864125 is a deficient number, since it is larger than the sum of its proper divisors (3190459).

12864125 is an equidigital number, since it uses as much as digits as its factorization.

12864125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102928 (or 102918 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 12864125 is about 3586.6593091622. The cubic root of 12864125 is about 234.3113990388.

The spelling of 12864125 in words is "twelve million, eight hundred sixty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 102913 514565 2572825 12864125