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12429625 = 53137649
BaseRepresentation
bin101111011010…
…100100111001
3212101111020111
4233122210321
511140222000
61122224321
7210435655
oct57324471
925344214
1012429625
11701a61a
1241b50a1
132762710
141917a65
151157cba
hexbda939

12429625 has 16 divisors (see below), whose sum is σ = 16707600. Its totient is φ = 9177600.

The previous prime is 12429607. The next prime is 12429653. The reversal of 12429625 is 52692421.

It can be written as a sum of positive squares in 8 ways, for example, as 9753129 + 2676496 = 3123^2 + 1636^2 .

It is not a de Polignac number, because 12429625 - 213 = 12421433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2200 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (1044225).

Almost surely, 212429625 is an apocalyptic number.

It is an amenable number.

12429625 is a deficient number, since it is larger than the sum of its proper divisors (4277975).

12429625 is an equidigital number, since it uses as much as digits as its factorization.

12429625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677 (or 7667 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 12429625 is about 3525.5673302321. The cubic root of 12429625 is about 231.6430860068.

The spelling of 12429625 in words is "twelve million, four hundred twenty-nine thousand, six hundred twenty-five".

Divisors: 1 5 13 25 65 125 325 1625 7649 38245 99437 191225 497185 956125 2485925 12429625