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12804908 = 228338569
BaseRepresentation
bin110000110110…
…001100101100
3220002120000212
4300312030230
511234224113
61134241552
7213561044
oct60661454
926076025
1012804908
117256576
1243562b8
13286448c
1419b4724
1511ce0a8
hexc3632c

12804908 has 12 divisors (see below), whose sum is σ = 22679160. Its totient is φ = 6325152.

The previous prime is 12804907. The next prime is 12804919. The reversal of 12804908 is 80940821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12804907) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18953 + ... + 19616.

It is an arithmetic number, because the mean of its divisors is an integer number (1889930).

Almost surely, 212804908 is an apocalyptic number.

It is an amenable number.

12804908 is a deficient number, since it is larger than the sum of its proper divisors (9874252).

12804908 is a wasteful number, since it uses less digits than its factorization.

12804908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38656 (or 38654 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12804908 is about 3578.3946121131. The cubic root of 12804908 is about 233.9513133179.

The spelling of 12804908 in words is "twelve million, eight hundred four thousand, nine hundred eight".

Divisors: 1 2 4 83 166 332 38569 77138 154276 3201227 6402454 12804908