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12825863 = 28614483
BaseRepresentation
bin110000111011…
…010100000111
3220010121202222
4300323110013
511240411423
61134522555
7214006121
oct60732407
926117688
1012825863
117270296
12436645b
132870b8b
1419bc211
1511d53c8
hexc3b507

12825863 has 4 divisors (see below), whose sum is σ = 12833208. Its totient is φ = 12818520.

The previous prime is 12825853. The next prime is 12825913. The reversal of 12825863 is 36852821.

12825863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36852821 = 172167813.

It is a cyclic number.

It is not a de Polignac number, because 12825863 - 28 = 12825607 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 (12825823) 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, 620 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (3208302).

Almost surely, 212825863 is an apocalyptic number.

12825863 is a deficient number, since it is larger than the sum of its proper divisors (7345).

12825863 is an equidigital number, since it uses as much as digits as its factorization.

12825863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344.

The product of its digits is 23040, while the sum is 35.

The square root of 12825863 is about 3581.3214041747. The cubic root of 12825863 is about 234.0788627945.

The spelling of 12825863 in words is "twelve million, eight hundred twenty-five thousand, eight hundred sixty-three".

Divisors: 1 2861 4483 12825863