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12332813 = 47925747
BaseRepresentation
bin101111000010…
…111100001101
3212012120102212
4233002330031
511124122223
61120200205
7206553503
oct57027415
925176385
1012332813
116a63909
124169065
13272a62c
1418d0673
151139278
hexbc2f0d

12332813 has 4 divisors (see below), whose sum is σ = 12359040. Its totient is φ = 12306588.

The previous prime is 12332779. The next prime is 12332833. The reversal of 12332813 is 31823321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31823321 = 169318797.

It is a cyclic number.

It is not a de Polignac number, because 12332813 - 28 = 12332557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12332833) 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 3 ways as a sum of consecutive naturals, for example, 12395 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (3089760).

Almost surely, 212332813 is an apocalyptic number.

It is an amenable number.

12332813 is a deficient number, since it is larger than the sum of its proper divisors (26227).

12332813 is an equidigital number, since it uses as much as digits as its factorization.

12332813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26226.

The product of its digits is 864, while the sum is 23.

The square root of 12332813 is about 3511.8105017213. The cubic root of 12332813 is about 231.0401097246.

The spelling of 12332813 in words is "twelve million, three hundred thirty-two thousand, eight hundred thirteen".

Divisors: 1 479 25747 12332813