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5247739 = 7749677
BaseRepresentation
bin10100000001001011111011
3100212121112201
4110001023323
52320411424
6304251031
762414350
oct24011373
910777481
105247739
112a64782
121910a77
131119793
149a8627
156d9d44
hex5012fb

5247739 has 4 divisors (see below), whose sum is σ = 5997424. Its totient is φ = 4498056.

The previous prime is 5247709. The next prime is 5247757. The reversal of 5247739 is 9377425.

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 5247739 - 29 = 5247227 is a prime.

It is a super-2 number, since 2×52477392 = 55077529224242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5247698 and 5247707.

It is not an unprimeable number, because it can be changed into a prime (5247709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374832 + ... + 374845.

It is an arithmetic number, because the mean of its divisors is an integer number (1499356).

Almost surely, 25247739 is an apocalyptic number.

5247739 is a deficient number, since it is larger than the sum of its proper divisors (749685).

5247739 is an equidigital number, since it uses as much as digits as its factorization.

5247739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749684.

The product of its digits is 52920, while the sum is 37.

The square root of 5247739 is about 2290.7944036949. The cubic root of 5247739 is about 173.7763785149.

The spelling of 5247739 in words is "five million, two hundred forty-seven thousand, seven hundred thirty-nine".

Divisors: 1 7 749677 5247739