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530247 = 31737281
BaseRepresentation
bin10000001011101000111
3222221100210
42001131013
5113431442
615210503
74335624
oct2013507
9887323
10530247
11332423
12216a33
13157473
14db34b
15a719c
hex81747

530247 has 16 divisors (see below), whose sum is σ = 771552. Its totient is φ = 322560.

The previous prime is 530237. The next prime is 530249. The reversal of 530247 is 742035.

It is a happy number.

It is not a de Polignac number, because 530247 - 26 = 530183 is a prime.

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 530247.

It is not an unprimeable number, because it can be changed into a prime (530249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1747 + ... + 2027.

It is an arithmetic number, because the mean of its divisors is an integer number (48222).

2530247 is an apocalyptic number.

530247 is a deficient number, since it is larger than the sum of its proper divisors (241305).

530247 is a wasteful number, since it uses less digits than its factorization.

530247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 530247 is about 728.1806094644. The cubic root of 530247 is about 80.9392930289.

It can be divided in two parts, 530 and 247, that added together give a palindrome (777).

The spelling of 530247 in words is "five hundred thirty thousand, two hundred forty-seven".

Divisors: 1 3 17 37 51 111 281 629 843 1887 4777 10397 14331 31191 176749 530247