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12738325 = 52618353
BaseRepresentation
bin110000100101…
…111100010101
3212222011200211
4300211330111
511230111300
61133005421
7213162655
oct60457425
925864624
1012738325
117210546
124323871
132840092
141998365
1511b94ba
hexc25f15

12738325 has 12 divisors (see below), whose sum is σ = 16056388. Its totient is φ = 10022400.

The previous prime is 12738311. The next prime is 12738347. The reversal of 12738325 is 52383721.

12738325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1602756 + 11135569 = 1266^2 + 3337^2 .

It is not a de Polignac number, because 12738325 - 25 = 12738293 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2652 + ... + 5701.

Almost surely, 212738325 is an apocalyptic number.

It is an amenable number.

12738325 is a deficient number, since it is larger than the sum of its proper divisors (3318063).

12738325 is an equidigital number, since it uses as much as digits as its factorization.

12738325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8424 (or 8419 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 12738325 is about 3569.0790128547. The cubic root of 12738325 is about 233.5451081871.

The spelling of 12738325 in words is "twelve million, seven hundred thirty-eight thousand, three hundred twenty-five".

Divisors: 1 5 25 61 305 1525 8353 41765 208825 509533 2547665 12738325