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12973325 = 52518933
BaseRepresentation
bin110001011111…
…010100001101
3220102010001112
4301133110031
511310121300
61142021405
7215162051
oct61372415
926363045
1012973325
117361062
124417865
1328c3031
141a19c61
151213e35
hexc5f50d

12973325 has 6 divisors (see below), whose sum is σ = 16086954. Its totient is φ = 10378640.

The previous prime is 12973319. The next prime is 12973327. The reversal of 12973325 is 52337921.

It can be written as a sum of positive squares in 3 ways, for example, as 1857769 + 11115556 = 1363^2 + 3334^2 .

It is not a de Polignac number, because 12973325 - 24 = 12973309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12973291 and 12973300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12973327) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 259442 + ... + 259491.

It is an arithmetic number, because the mean of its divisors is an integer number (2681159).

Almost surely, 212973325 is an apocalyptic number.

It is an amenable number.

12973325 is a deficient number, since it is larger than the sum of its proper divisors (3113629).

12973325 is an equidigital number, since it uses as much as digits as its factorization.

12973325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518943 (or 518938 counting only the distinct ones).

The product of its digits is 11340, while the sum is 32.

The square root of 12973325 is about 3601.8502189847. The cubic root of 12973325 is about 234.9725333826.

The spelling of 12973325 in words is "twelve million, nine hundred seventy-three thousand, three hundred twenty-five".

Divisors: 1 5 25 518933 2594665 12973325