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12965465 = 52989417
BaseRepresentation
bin110001011101…
…011001011001
3220101201021102
4301131121121
511304343330
61141521145
7215130122
oct61353131
926351242
1012965465
117356167
1244131b5
1328bc596
141a17049
151211945
hexc5d659

12965465 has 8 divisors (see below), whose sum is σ = 16095240. Its totient is φ = 10014592.

The previous prime is 12965461. The next prime is 12965497. The reversal of 12965465 is 56456921.

12965465 is digitally balanced in base 3, 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 4 ways, for example, as 5550736 + 7414729 = 2356^2 + 2723^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12965465 - 22 = 12965461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12965461) by changing a digit.

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, 44564 + ... + 44853.

It is an arithmetic number, because the mean of its divisors is an integer number (2011905).

Almost surely, 212965465 is an apocalyptic number.

It is an amenable number.

12965465 is a deficient number, since it is larger than the sum of its proper divisors (3129775).

12965465 is an equidigital number, since it uses as much as digits as its factorization.

12965465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89451.

The product of its digits is 64800, while the sum is 38.

The square root of 12965465 is about 3600.7589477775. The cubic root of 12965465 is about 234.9250704224.

The spelling of 12965465 in words is "twelve million, nine hundred sixty-five thousand, four hundred sixty-five".

Divisors: 1 5 29 145 89417 447085 2593093 12965465