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12630856 = 237283797
BaseRepresentation
bin110000001011…
…101101001000
3212202201021111
4300023231020
511213141411
61130420104
7212234440
oct60135510
925681244
1012630856
117147827
124291634
1328031a4
14196b120
151197721
hexc0bb48

12630856 has 32 divisors (see below), whose sum is σ = 27195840. Its totient is φ = 5387328.

The previous prime is 12630853. The next prime is 12630869. The reversal of 12630856 is 65803621.

It is not an unprimeable number, because it can be changed into a prime (12630851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15450 + ... + 16246.

It is an arithmetic number, because the mean of its divisors is an integer number (849870).

Almost surely, 212630856 is an apocalyptic number.

It is an amenable number.

12630856 is an abundant number, since it is smaller than the sum of its proper divisors (14564984).

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

12630856 is a wasteful number, since it uses less digits than its factorization.

12630856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12630856 is about 3553.9915587970. The cubic root of 12630856 is about 232.8864717364.

The spelling of 12630856 in words is "twelve million, six hundred thirty thousand, eight hundred fifty-six".

Divisors: 1 2 4 7 8 14 28 56 283 566 797 1132 1594 1981 2264 3188 3962 5579 6376 7924 11158 15848 22316 44632 225551 451102 902204 1578857 1804408 3157714 6315428 12630856