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12865233 = 337115903
BaseRepresentation
bin110001000100…
…111011010001
3220012121210010
4301010323101
511243141413
61135425133
7214231653
oct61047321
926177703
1012865233
117297927
1243851a9
132885a84
1419cc6d3
1511e1dc3
hexc44ed1

12865233 has 8 divisors (see below), whose sum is σ = 17617408. Its totient is φ = 8344944.

The previous prime is 12865199. The next prime is 12865247. The reversal of 12865233 is 33256821.

12865233 is nontrivially palindromic in base 11.

12865233 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12865233 - 210 = 12864209 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 12865233.

It is not an unprimeable number, because it can be changed into a prime (12865253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57841 + ... + 58062.

It is an arithmetic number, because the mean of its divisors is an integer number (2202176).

Almost surely, 212865233 is an apocalyptic number.

It is an amenable number.

12865233 is a deficient number, since it is larger than the sum of its proper divisors (4752175).

12865233 is a wasteful number, since it uses less digits than its factorization.

12865233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115943.

The product of its digits is 8640, while the sum is 30.

The square root of 12865233 is about 3586.8137671198. The cubic root of 12865233 is about 234.3181260044.

The spelling of 12865233 in words is "twelve million, eight hundred sixty-five thousand, two hundred thirty-three".

Divisors: 1 3 37 111 115903 347709 4288411 12865233