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12868827 = 34289609
BaseRepresentation
bin110001000101…
…110011011011
3220012210201020
4301011303123
511243300302
61135453523
7214245306
oct61056333
926183636
1012868827
11729a5a4
1243872a3
1328875ba
1419cdb3d
1511e2ebc
hexc45cdb

12868827 has 4 divisors (see below), whose sum is σ = 17158440. Its totient is φ = 8579216.

The previous prime is 12868811. The next prime is 12868829. The reversal of 12868827 is 72886821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12868827 - 24 = 12868811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12868829) 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, 2144802 + ... + 2144807.

It is an arithmetic number, because the mean of its divisors is an integer number (4289610).

Almost surely, 212868827 is an apocalyptic number.

12868827 is a deficient number, since it is larger than the sum of its proper divisors (4289613).

12868827 is an equidigital number, since it uses as much as digits as its factorization.

12868827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289612.

The product of its digits is 86016, while the sum is 42.

The square root of 12868827 is about 3587.3147338922. The cubic root of 12868827 is about 234.3399434856.

It can be divided in two parts, 12868 and 827, that added together give a triangular number (13695 = T165).

The spelling of 12868827 in words is "twelve million, eight hundred sixty-eight thousand, eight hundred twenty-seven".

Divisors: 1 3 4289609 12868827