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12730868 = 2223711949
BaseRepresentation
bin110000100100…
…000111110100
3212221210110122
4300210013310
511224341433
61132511112
7213132143
oct60440764
925853418
1012730868
117205987
12431b498
132839877
14199575a
1511b7198
hexc241f4

12730868 has 24 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 5999840.

The previous prime is 12730853. The next prime is 12730877. The reversal of 12730868 is 86803721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5558 + ... + 7506.

It is an arithmetic number, because the mean of its divisors is an integer number (982800).

Almost surely, 212730868 is an apocalyptic number.

It is an amenable number.

12730868 is a deficient number, since it is larger than the sum of its proper divisors (10856332).

12730868 is a wasteful number, since it uses less digits than its factorization.

12730868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 12730868 is about 3568.0341926613. The cubic root of 12730868 is about 233.4995269506.

The spelling of 12730868 in words is "twelve million, seven hundred thirty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 23 46 71 92 142 284 1633 1949 3266 3898 6532 7796 44827 89654 138379 179308 276758 553516 3182717 6365434 12730868