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530687 = 975471
BaseRepresentation
bin10000001100011111111
3222221222002
42001203333
5113440222
615212515
74340123
oct2014377
9887862
10530687
11332793
1221713b
13157721
14db583
15a7392
hex818ff

530687 has 4 divisors (see below), whose sum is σ = 536256. Its totient is φ = 525120.

The previous prime is 530669. The next prime is 530693. The reversal of 530687 is 786035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786035 = 5157207.

It is a cyclic number.

It is not a de Polignac number, because 530687 - 216 = 465151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 530687.

It is not an unprimeable number, because it can be changed into a prime (530087) 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, 2639 + ... + 2832.

It is an arithmetic number, because the mean of its divisors is an integer number (134064).

2530687 is an apocalyptic number.

530687 is a deficient number, since it is larger than the sum of its proper divisors (5569).

530687 is an equidigital number, since it uses as much as digits as its factorization.

530687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5568.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 530687 is about 728.4826696635. The cubic root of 530687 is about 80.9616747006.

The spelling of 530687 in words is "five hundred thirty thousand, six hundred eighty-seven".

Divisors: 1 97 5471 530687