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12665113 = 167181419
BaseRepresentation
bin110000010100…
…000100011001
3212211110021021
4300110010121
511220240423
61131242441
7212436346
oct60240431
925743237
1012665113
11717053a
1242a9421
132815966
1419797cd
1511a295d
hexc14119

12665113 has 8 divisors (see below), whose sum is σ = 12841920. Its totient is φ = 12489840.

The previous prime is 12665087. The next prime is 12665123. The reversal of 12665113 is 31156621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12665113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12665123) 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, 30018 + ... + 30436.

It is an arithmetic number, because the mean of its divisors is an integer number (1605240).

Almost surely, 212665113 is an apocalyptic number.

It is an amenable number.

12665113 is a deficient number, since it is larger than the sum of its proper divisors (176807).

12665113 is a wasteful number, since it uses less digits than its factorization.

12665113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767.

The product of its digits is 1080, while the sum is 25.

The square root of 12665113 is about 3558.8078059935. The cubic root of 12665113 is about 233.0968240714.

The spelling of 12665113 in words is "twelve million, six hundred sixty-five thousand, one hundred thirteen".

Divisors: 1 167 181 419 30227 69973 75839 12665113