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12932665 = 517233653
BaseRepresentation
bin110001010101…
…011000111001
3220100001021121
4301111120321
511302321130
61141105241
7214632364
oct61253071
926301247
1012932665
117333559
1243b8221
1328aa685
141a090db
151206d7a
hexc55639

12932665 has 16 divisors (see below), whose sum is σ = 16527888. Its totient is φ = 9680896.

The previous prime is 12932657. The next prime is 12932669. The reversal of 12932665 is 56623921.

12932665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 633616 + 12299049 = 796^2 + 3507^2 .

It is a cyclic number.

It is not a de Polignac number, because 12932665 - 23 = 12932657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12932665.

It is not an unprimeable number, because it can be changed into a prime (12932669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19479 + ... + 20131.

It is an arithmetic number, because the mean of its divisors is an integer number (1032993).

Almost surely, 212932665 is an apocalyptic number.

It is an amenable number.

12932665 is a deficient number, since it is larger than the sum of its proper divisors (3595223).

12932665 is a wasteful number, since it uses less digits than its factorization.

12932665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its digits is 19440, while the sum is 34.

The square root of 12932665 is about 3596.2014682162. The cubic root of 12932665 is about 234.7267988531.

The spelling of 12932665 in words is "twelve million, nine hundred thirty-two thousand, six hundred sixty-five".

Divisors: 1 5 17 85 233 653 1165 3265 3961 11101 19805 55505 152149 760745 2586533 12932665