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12707425 = 52508297
BaseRepresentation
bin110000011110…
…011001100001
3212220121022101
4300132121201
511223114200
61132210401
7213003613
oct60363141
925817271
1012707425
11719a305
124309a01
13282bcb3
14198adb3
1511b026a
hexc1e661

12707425 has 6 divisors (see below), whose sum is σ = 15757238. Its totient is φ = 10165920.

The previous prime is 12707413. The next prime is 12707501. The reversal of 12707425 is 52470721.

It can be written as a sum of positive squares in 3 ways, for example, as 5329 + 12702096 = 73^2 + 3564^2 .

It is not a de Polignac number, because 12707425 - 27 = 12707297 is a prime.

It is a super-2 number, since 2×127074252 = 322957300261250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12707393 and 12707402.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 254124 + ... + 254173.

Almost surely, 212707425 is an apocalyptic number.

It is an amenable number.

12707425 is a deficient number, since it is larger than the sum of its proper divisors (3049813).

12707425 is an equidigital number, since it uses as much as digits as its factorization.

12707425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508307 (or 508302 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 12707425 is about 3564.7475366427. The cubic root of 12707425 is about 233.3561145558.

The spelling of 12707425 in words is "twelve million, seven hundred seven thousand, four hundred twenty-five".

Divisors: 1 5 25 508297 2541485 12707425