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12708425 = 52577881
BaseRepresentation
bin110000011110…
…101001001001
3212220122200102
4300132221021
511223132200
61132215145
7213006542
oct60365111
925818612
1012708425
1171a0034
12430a4b5
13282c5a2
14198b4c9
1511b06d5
hexc1ea49

12708425 has 12 divisors (see below), whose sum is σ = 15803676. Its totient is φ = 10137600.

The previous prime is 12708413. The next prime is 12708433. The reversal of 12708425 is 52480721.

It can be written as a sum of positive squares in 6 ways, for example, as 13456 + 12694969 = 116^2 + 3563^2 .

It is not a de Polignac number, because 12708425 - 220 = 11659849 is a prime.

It is a Duffinian number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 13985 + ... + 14865.

It is an arithmetic number, because the mean of its divisors is an integer number (1316973).

Almost surely, 212708425 is an apocalyptic number.

It is an amenable number.

12708425 is a deficient number, since it is larger than the sum of its proper divisors (3095251).

12708425 is an equidigital number, since it uses as much as digits as its factorization.

12708425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 12708425 is about 3564.8877962707. The cubic root of 12708425 is about 233.3622356488.

The spelling of 12708425 in words is "twelve million, seven hundred eight thousand, four hundred twenty-five".

Divisors: 1 5 25 577 881 2885 4405 14425 22025 508337 2541685 12708425