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12504925 = 52500197
BaseRepresentation
bin101111101100…
…111101011101
3212112022112101
4233230331131
511200124200
61124005101
7211201336
oct57547535
925468471
1012504925
117071154
124230791
13278aa84
14193728d
15117026a
hexbecf5d

12504925 has 6 divisors (see below), whose sum is σ = 15506138. Its totient is φ = 10003920.

The previous prime is 12504923. The next prime is 12504929. The reversal of 12504925 is 52940521.

It can be written as a sum of positive squares in 3 ways, for example, as 191844 + 12313081 = 438^2 + 3509^2 .

It is not a de Polignac number, because 12504925 - 21 = 12504923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12504893 and 12504902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12504923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250074 + ... + 250123.

Almost surely, 212504925 is an apocalyptic number.

It is an amenable number.

12504925 is a deficient number, since it is larger than the sum of its proper divisors (3001213).

12504925 is an equidigital number, since it uses as much as digits as its factorization.

12504925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500207 (or 500202 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 12504925 is about 3536.2303375205. The cubic root of 12504925 is about 232.1099174452.

The spelling of 12504925 in words is "twelve million, five hundred four thousand, nine hundred twenty-five".

Divisors: 1 5 25 500197 2500985 12504925