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12804896 = 251330781
BaseRepresentation
bin110000110110…
…001100100000
3220002120000102
4300312030200
511234224041
61134241532
7213561026
oct60661440
926076012
1012804896
117256565
1243562a8
132864480
1419b4716
1511ce09b
hexc36320

12804896 has 24 divisors (see below), whose sum is σ = 27149724. Its totient is φ = 5909760.

The previous prime is 12804877. The next prime is 12804907. The reversal of 12804896 is 69840821.

It can be written as a sum of positive squares in 2 ways, for example, as 11316496 + 1488400 = 3364^2 + 1220^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14975 + ... + 15806.

Almost surely, 212804896 is an apocalyptic number.

12804896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12804896 is an abundant number, since it is smaller than the sum of its proper divisors (14344828).

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

12804896 is a wasteful number, since it uses less digits than its factorization.

12804896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30804 (or 30796 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 12804896 is about 3578.3929353831. The cubic root of 12804896 is about 233.9512402361.

The spelling of 12804896 in words is "twelve million, eight hundred four thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 30781 61562 123124 246248 400153 492496 800306 984992 1600612 3201224 6402448 12804896