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12708538 = 237199863
BaseRepresentation
bin110000011110…
…101010111010
3212220122211121
4300132222322
511223133123
61132215454
7213010063
oct60365272
925818747
1012708538
1171a0127
12430a58a
13282c65b
14198b56a
1511b075d
hexc1eaba

12708538 has 16 divisors (see below), whose sum is σ = 19699200. Its totient is φ = 6144336.

The previous prime is 12708529. The next prime is 12708551. The reversal of 12708538 is 83580721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14295 + ... + 15157.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 212708538 is an apocalyptic number.

12708538 is a deficient number, since it is larger than the sum of its proper divisors (6990662).

12708538 is a wasteful number, since it uses less digits than its factorization.

12708538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 12708538 is about 3564.9036452617. The cubic root of 12708538 is about 233.3629273122.

The spelling of 12708538 in words is "twelve million, seven hundred eight thousand, five hundred thirty-eight".

Divisors: 1 2 37 74 199 398 863 1726 7363 14726 31931 63862 171737 343474 6354269 12708538