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12513425 = 522711847
BaseRepresentation
bin101111101111…
…000010010001
3212112202012012
4233233002101
511200412200
61124112305
7211235201
oct57570221
925482165
1012513425
117077581
124235695
1327918c2
14193a401
151172a35
hexbef091

12513425 has 12 divisors (see below), whose sum is σ = 15582336. Its totient is φ = 9968400.

The previous prime is 12513409. The next prime is 12513433. The reversal of 12513425 is 52431521.

It is not a de Polignac number, because 12513425 - 24 = 12513409 is a prime.

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 12513425.

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, 5852 + ... + 7698.

It is an arithmetic number, because the mean of its divisors is an integer number (1298528).

Almost surely, 212513425 is an apocalyptic number.

It is an amenable number.

12513425 is a deficient number, since it is larger than the sum of its proper divisors (3068911).

12513425 is a wasteful number, since it uses less digits than its factorization.

12513425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128 (or 2123 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 12513425 is about 3537.4319781446. The cubic root of 12513425 is about 232.1624963943.

Adding to 12513425 its reverse (52431521), we get a palindrome (64944946).

The spelling of 12513425 in words is "twelve million, five hundred thirteen thousand, four hundred twenty-five".

Divisors: 1 5 25 271 1355 1847 6775 9235 46175 500537 2502685 12513425