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12980928 = 263174197
BaseRepresentation
bin110001100001…
…001011000000
3220102111111010
4301201023000
511310342203
61142120520
7215223162
oct61411300
926374433
1012980928
117366844
124420140
1328c662c
141a1c932
151216303
hexc612c0

12980928 has 112 divisors (see below), whose sum is σ = 37636704. Its totient is φ = 3932160.

The previous prime is 12980899. The next prime is 12980939. The reversal of 12980928 is 82908921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133776 + ... + 133872.

It is an arithmetic number, because the mean of its divisors is an integer number (336042).

Almost surely, 212980928 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 12980928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18818352).

12980928 is an abundant number, since it is smaller than the sum of its proper divisors (24655776).

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

12980928 is a wasteful number, since it uses less digits than its factorization.

12980928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 12980928 is about 3602.9054941811. The cubic root of 12980928 is about 235.0184261997.

The spelling of 12980928 in words is "twelve million, nine hundred eighty thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 41 48 51 64 68 82 96 97 102 123 136 164 192 194 204 246 272 291 328 388 408 492 544 582 656 697 776 816 984 1088 1164 1312 1394 1552 1632 1649 1968 2091 2328 2624 2788 3104 3264 3298 3936 3977 4182 4656 4947 5576 6208 6596 7872 7954 8364 9312 9894 11152 11931 13192 15908 16728 18624 19788 22304 23862 26384 31816 33456 39576 44608 47724 52768 63632 66912 67609 79152 95448 105536 127264 133824 135218 158304 190896 202827 254528 270436 316608 381792 405654 540872 763584 811308 1081744 1622616 2163488 3245232 4326976 6490464 12980928