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12875329 = 19765357
BaseRepresentation
bin110001000111…
…011001000001
3220020010122001
4301013121001
511244002304
61135544001
7214303255
oct61073101
926203561
1012875329
1172a4475
12438b001
13288a54c
1419d2265
1511e4da4
hexc47641

12875329 has 4 divisors (see below), whose sum is σ = 12940884. Its totient is φ = 12809776.

The previous prime is 12875327. The next prime is 12875339. The reversal of 12875329 is 92357821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92357821 = 175432813.

It can be written as a sum of positive squares in 2 ways, for example, as 12439729 + 435600 = 3527^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 12875329 - 21 = 12875327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12875327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32482 + ... + 32875.

It is an arithmetic number, because the mean of its divisors is an integer number (3235221).

Almost surely, 212875329 is an apocalyptic number.

It is an amenable number.

12875329 is a deficient number, since it is larger than the sum of its proper divisors (65555).

12875329 is an equidigital number, since it uses as much as digits as its factorization.

12875329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65554.

The product of its digits is 30240, while the sum is 37.

The square root of 12875329 is about 3588.2208683413. The cubic root of 12875329 is about 234.3794037454.

It can be divided in two parts, 128 and 75329, that added together give a palindrome (75457).

The spelling of 12875329 in words is "twelve million, eight hundred seventy-five thousand, three hundred twenty-nine".

Divisors: 1 197 65357 12875329