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530709 = 3176903
BaseRepresentation
bin10000001100100010101
3222221222220
42001210111
5113440314
615212553
74340154
oct2014425
9887886
10530709
11332803
12217159
1315773a
14db59b
15a73a9
hex81915

530709 has 4 divisors (see below), whose sum is σ = 707616. Its totient is φ = 353804.

The previous prime is 530701. The next prime is 530711. The reversal of 530709 is 907035.

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 530709 - 23 = 530701 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88449 + ... + 88454.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

2530709 is an apocalyptic number.

It is an amenable number.

530709 is a deficient number, since it is larger than the sum of its proper divisors (176907).

530709 is a wasteful number, since it uses less digits than its factorization.

530709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176906.

The product of its (nonzero) digits is 945, while the sum is 24.

The square root of 530709 is about 728.4977693857. The cubic root of 530709 is about 80.9627934593.

The spelling of 530709 in words is "five hundred thirty thousand, seven hundred nine".

Divisors: 1 3 176903 530709