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12708320 = 25579427
BaseRepresentation
bin110000011110…
…100111100000
3212220122112112
4300132213200
511223131240
61132214452
7213006332
oct60364740
925818475
1012708320
11719aa49
12430a428
13282c521
14198b452
1511b0665
hexc1e9e0

12708320 has 24 divisors (see below), whose sum is σ = 30023784. Its totient is φ = 5083264.

The previous prime is 12708317. The next prime is 12708329. The reversal of 12708320 is 2380721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12708329) 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, 39554 + ... + 39873.

It is an arithmetic number, because the mean of its divisors is an integer number (1250991).

Almost surely, 212708320 is an apocalyptic number.

12708320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12708320 is an abundant number, since it is smaller than the sum of its proper divisors (17315464).

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

12708320 is an equidigital number, since it uses as much as digits as its factorization.

12708320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79442 (or 79434 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12708320 is about 3564.8730692691. The cubic root of 12708320 is about 233.3615929491.

The spelling of 12708320 in words is "twelve million, seven hundred eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 79427 158854 317708 397135 635416 794270 1270832 1588540 2541664 3177080 6354160 12708320