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12908742 = 2371127941
BaseRepresentation
bin110001001111…
…100011000110
3220021211110120
4301033203012
511301034432
61140402410
7214502550
oct61174306
926254416
1012908742
117317590
1243a6406
13289c812
141a004d0
1511eec2c
hexc4f8c6

12908742 has 32 divisors (see below), whose sum is σ = 32189184. Its totient is φ = 3352800.

The previous prime is 12908737. The next prime is 12908767. The reversal of 12908742 is 24780921.

It is a happy number.

12908742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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, 13509 + ... + 14432.

It is an arithmetic number, because the mean of its divisors is an integer number (1005912).

Almost surely, 212908742 is an apocalyptic number.

12908742 is an abundant number, since it is smaller than the sum of its proper divisors (19280442).

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

12908742 is a wasteful number, since it uses less digits than its factorization.

12908742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27964.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12908742 is about 3592.8737801376. The cubic root of 12908742 is about 234.5819760284.

The spelling of 12908742 in words is "twelve million, nine hundred eight thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 27941 55882 83823 167646 195587 307351 391174 586761 614702 922053 1173522 1844106 2151457 4302914 6454371 12908742