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12808704 = 29331269
BaseRepresentation
bin110000110111…
…001000000000
3220002202020110
4300313020000
511234334304
61134311320
7213605106
oct60671000
926082213
1012808704
117259407
124358540
13286611c
1419b5c76
1511d0289
hexc37200

12808704 has 80 divisors (see below), whose sum is σ = 35354880. Its totient is φ = 4116480.

The previous prime is 12808661. The next prime is 12808721. The reversal of 12808704 is 40780821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47482 + ... + 47750.

It is an arithmetic number, because the mean of its divisors is an integer number (441936).

Almost surely, 212808704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12808704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17677440).

12808704 is an abundant number, since it is smaller than the sum of its proper divisors (22546176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12808704 is an equidigital number, since it uses as much as digits as its factorization.

12808704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 12808704 is about 3578.9249782581. The cubic root of 12808704 is about 233.9744292315.

The spelling of 12808704 in words is "twelve million, eight hundred eight thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 64 93 96 124 128 186 192 248 256 269 372 384 496 512 538 744 768 807 992 1076 1488 1536 1614 1984 2152 2976 3228 3968 4304 5952 6456 7936 8339 8608 11904 12912 15872 16678 17216 23808 25017 25824 33356 34432 47616 50034 51648 66712 68864 100068 103296 133424 137728 200136 206592 266848 400272 413184 533696 800544 1067392 1601088 2134784 3202176 4269568 6404352 12808704