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5257839 = 31752613
BaseRepresentation
bin10100000011101001101111
3100220010101210
4110003221233
52321222324
6304405503
762455656
oct24035157
910803353
105257839
112a71324
121916893
131121262
149ac19d
156dcd29
hex503a6f

5257839 has 4 divisors (see below), whose sum is σ = 7010456. Its totient is φ = 3505224.

The previous prime is 5257829. The next prime is 5257877. The reversal of 5257839 is 9387525.

5257839 is digitally balanced in base 4, 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.

It is not a de Polignac number, because 5257839 - 25 = 5257807 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5257797 and 5257806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257829) 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, 876304 + ... + 876309.

It is an arithmetic number, because the mean of its divisors is an integer number (1752614).

Almost surely, 25257839 is an apocalyptic number.

5257839 is a deficient number, since it is larger than the sum of its proper divisors (1752617).

5257839 is a wasteful number, since it uses less digits than its factorization.

5257839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752616.

The product of its digits is 75600, while the sum is 39.

The square root of 5257839 is about 2292.9978194495. The cubic root of 5257839 is about 173.8877926320.

The spelling of 5257839 in words is "five million, two hundred fifty-seven thousand, eight hundred thirty-nine".

Divisors: 1 3 1752613 5257839