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530623 = 2931811
BaseRepresentation
bin10000001100010111111
3222221212201
42001202333
5113434443
615212331
74340002
oct2014277
9887781
10530623
11332735
122170a7
131576a2
14db539
15a734d
hex818bf

530623 has 4 divisors (see below), whose sum is σ = 532728. Its totient is φ = 528520.

The previous prime is 530609. The next prime is 530641. The reversal of 530623 is 326035.

530623 is digitally balanced in base 2, 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-530623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530603) 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, 613 + ... + 1198.

It is an arithmetic number, because the mean of its divisors is an integer number (133182).

2530623 is an apocalyptic number.

530623 is a deficient number, since it is larger than the sum of its proper divisors (2105).

530623 is a wasteful number, since it uses less digits than its factorization.

530623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 530623 is about 728.4387414189. The cubic root of 530623 is about 80.9584199537.

Adding to 530623 its reverse (326035), we get a palindrome (856658).

It can be divided in two parts, 5306 and 23, that added together give a square (5329 = 732).

The spelling of 530623 in words is "five hundred thirty thousand, six hundred twenty-three".

Divisors: 1 293 1811 530623