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530305 = 5671583
BaseRepresentation
bin10000001011110000001
3222221102221
42001132001
5113432210
615211041
74336036
oct2013601
9887387
10530305
11332476
12216a81
131574b9
14db38d
15a71da
hex81781

530305 has 8 divisors (see below), whose sum is σ = 646272. Its totient is φ = 417648.

The previous prime is 530303. The next prime is 530329. The reversal of 530305 is 503035.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 530305 - 21 = 530303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530303) 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 7 ways as a sum of consecutive naturals, for example, 457 + ... + 1126.

It is an arithmetic number, because the mean of its divisors is an integer number (80784).

2530305 is an apocalyptic number.

It is an amenable number.

530305 is a deficient number, since it is larger than the sum of its proper divisors (115967).

530305 is a wasteful number, since it uses less digits than its factorization.

530305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 530305 is about 728.2204336600. The cubic root of 530305 is about 80.9422440484.

It can be divided in two parts, 53030 and 5, that added together give a palindrome (53035).

The spelling of 530305 in words is "five hundred thirty thousand, three hundred five".

Divisors: 1 5 67 335 1583 7915 106061 530305