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12804325 = 52432277
BaseRepresentation
bin110000110110…
…000011100101
3220002112020021
4300312003211
511234214300
61134235141
7213556252
oct60660345
926075207
1012804325
117256096
124355ab1
132864131
1419b4429
1511cdd1a
hexc360e5

12804325 has 18 divisors (see below), whose sum is σ = 16313874. Its totient is φ = 9969120.

The previous prime is 12804317. The next prime is 12804343. The reversal of 12804325 is 52340821.

It can be written as a sum of positive squares in 3 ways, for example, as 66564 + 12737761 = 258^2 + 3569^2 .

It is not a de Polignac number, because 12804325 - 23 = 12804317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12804325.

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 17 ways as a sum of consecutive naturals, for example, 46087 + ... + 46363.

Almost surely, 212804325 is an apocalyptic number.

It is an amenable number.

12804325 is a deficient number, since it is larger than the sum of its proper divisors (3509549).

12804325 is an equidigital number, since it uses as much as digits as its factorization.

12804325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 12804325 is about 3578.3131500750. The cubic root of 12804325 is about 233.9477627083.

The spelling of 12804325 in words is "twelve million, eight hundred four thousand, three hundred twenty-five".

Divisors: 1 5 25 43 215 277 1075 1385 1849 6925 9245 11911 46225 59555 297775 512173 2560865 12804325