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5381257 = 7768751
BaseRepresentation
bin10100100001110010001001
3101010101200211
4110201302021
52334200012
6311201121
763511540
oct24416211
911111624
105381257
113046022
1219761a1
13116549b
14a01157
157146a7
hex521c89

5381257 has 4 divisors (see below), whose sum is σ = 6150016. Its totient is φ = 4612500.

The previous prime is 5381251. The next prime is 5381261. The reversal of 5381257 is 7521835.

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 a de Polignac number, because none of the positive numbers 2k-5381257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5381251) 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, 384369 + ... + 384382.

It is an arithmetic number, because the mean of its divisors is an integer number (1537504).

Almost surely, 25381257 is an apocalyptic number.

It is an amenable number.

5381257 is a deficient number, since it is larger than the sum of its proper divisors (768759).

5381257 is an equidigital number, since it uses as much as digits as its factorization.

5381257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768758.

The product of its digits is 8400, while the sum is 31.

The square root of 5381257 is about 2319.7536507138. The cubic root of 5381257 is about 175.2378480154.

The spelling of 5381257 in words is "five million, three hundred eighty-one thousand, two hundred fifty-seven".

Divisors: 1 7 768751 5381257