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2685857 = 5945523
BaseRepresentation
bin1010001111101110100001
312001110022012
422033232201
51141421412
6133322305
731554326
oct12175641
95043265
102685857
111574a19
12a96395
13730685
144dcb4d
15380c22
hex28fba1

2685857 has 4 divisors (see below), whose sum is σ = 2731440. Its totient is φ = 2640276.

The previous prime is 2685827. The next prime is 2685877. The reversal of 2685857 is 7585862.

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 a cyclic number.

It is not a de Polignac number, because 2685857 - 28 = 2685601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2685817) 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, 22703 + ... + 22820.

It is an arithmetic number, because the mean of its divisors is an integer number (682860).

22685857 is an apocalyptic number.

It is an amenable number.

2685857 is a deficient number, since it is larger than the sum of its proper divisors (45583).

2685857 is an equidigital number, since it uses as much as digits as its factorization.

2685857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45582.

The product of its digits is 134400, while the sum is 41.

The square root of 2685857 is about 1638.8584441617. The cubic root of 2685857 is about 139.0041059464.

The spelling of 2685857 in words is "two million, six hundred eighty-five thousand, eight hundred fifty-seven".

Divisors: 1 59 45523 2685857