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12708928 = 261711681
BaseRepresentation
bin110000011110…
…110001000000
3212220200101001
4300132301000
511223141203
61132221344
7213011161
oct60366100
925820331
1012708928
1171a0451
12430a854
13282c89b
14198b768
1511b091d
hexc1ec40

12708928 has 28 divisors (see below), whose sum is σ = 26705052. Its totient is φ = 5980160.

The previous prime is 12708919. The next prime is 12708937. The reversal of 12708928 is 82980721.

It is an interprime number because it is at equal distance from previous prime (12708919) and next prime (12708937).

It can be written as a sum of positive squares in 2 ways, for example, as 8248384 + 4460544 = 2872^2 + 2112^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

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, 4753 + ... + 6928.

Almost surely, 212708928 is an apocalyptic number.

It is an amenable number.

12708928 is an abundant number, since it is smaller than the sum of its proper divisors (13996124).

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

12708928 is a wasteful number, since it uses less digits than its factorization.

12708928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11710 (or 11700 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 12708928 is about 3564.9583447777. The cubic root of 12708928 is about 233.3653144373.

The spelling of 12708928 in words is "twelve million, seven hundred eight thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 16 17 32 34 64 68 136 272 544 1088 11681 23362 46724 93448 186896 198577 373792 397154 747584 794308 1588616 3177232 6354464 12708928