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12268857 = 34089619
BaseRepresentation
bin101110110011…
…010100111001
3212002022201010
4232303110321
511120100412
61114544133
7206166156
oct56632471
925068633
1012268857
116a1a857
124138049
1327074a3
1418b522d
15112533c
hexbb3539

12268857 has 4 divisors (see below), whose sum is σ = 16358480. Its totient is φ = 8179236.

The previous prime is 12268853. The next prime is 12268877. The reversal of 12268857 is 75886221.

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.

It is not a de Polignac number, because 12268857 - 22 = 12268853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12268853) 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, 2044807 + ... + 2044812.

It is an arithmetic number, because the mean of its divisors is an integer number (4089620).

Almost surely, 212268857 is an apocalyptic number.

It is an amenable number.

12268857 is a deficient number, since it is larger than the sum of its proper divisors (4089623).

12268857 is an equidigital number, since it uses as much as digits as its factorization.

12268857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089622.

The product of its digits is 53760, while the sum is 39.

The square root of 12268857 is about 3502.6928212448. The cubic root of 12268857 is about 230.6400383111.

The spelling of 12268857 in words is "twelve million, two hundred sixty-eight thousand, eight hundred fifty-seven".

Divisors: 1 3 4089619 12268857