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12686054 = 243114717
BaseRepresentation
bin110000011001…
…001011100110
3212212111222212
4300121023212
511221423204
61131523422
7212554403
oct60311346
925774885
1012686054
117185247
1242b9572
132822354
1419832aa
1511a8c6e
hexc192e6

12686054 has 8 divisors (see below), whose sum is σ = 19074528. Its totient is φ = 6327880.

The previous prime is 12686039. The next prime is 12686059. The reversal of 12686054 is 45068621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12686054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6497 + ... + 8220.

It is an arithmetic number, because the mean of its divisors is an integer number (2384316).

Almost surely, 212686054 is an apocalyptic number.

12686054 is a deficient number, since it is larger than the sum of its proper divisors (6388474).

12686054 is a wasteful number, since it uses less digits than its factorization.

12686054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12686054 is about 3561.7487278021. The cubic root of 12686054 is about 233.2252238407.

The spelling of 12686054 in words is "twelve million, six hundred eighty-six thousand, fifty-four".

Divisors: 1 2 431 862 14717 29434 6343027 12686054