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12983728 = 245361251
BaseRepresentation
bin110001100001…
…110110110000
3220102122022211
4301201312300
511310434403
61142141504
7215234302
oct61416660
926378284
1012983728
11736895a
124421894
1328c79a4
141a1d972
15121706d
hexc61db0

12983728 has 40 divisors (see below), whose sum is σ = 26154576. Its totient is φ = 6240000.

The previous prime is 12983723. The next prime is 12983759. The reversal of 12983728 is 82738921.

It is not an unprimeable number, because it can be changed into a prime (12983723) 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 7 ways as a sum of consecutive naturals, for example, 51603 + ... + 51853.

Almost surely, 212983728 is an apocalyptic number.

It is an amenable number.

12983728 is an abundant number, since it is smaller than the sum of its proper divisors (13170848).

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

12983728 is a wasteful number, since it uses less digits than its factorization.

12983728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 367 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 12983728 is about 3603.2940485062. The cubic root of 12983728 is about 235.0353228932.

The spelling of 12983728 in words is "twelve million, nine hundred eighty-three thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 16 53 61 106 122 212 244 251 424 488 502 848 976 1004 2008 3233 4016 6466 12932 13303 15311 25864 26606 30622 51728 53212 61244 106424 122488 212848 244976 811483 1622966 3245932 6491864 12983728