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530331645 = 35124928307
BaseRepresentation
bin11111100111000…
…011011111111101
31100221220122020210
4133213003133331
52041231103040
6124342503033
716066513254
oct3747033775
91327818223
10530331645
112523a4018
12129734a79
1385b4500c
145060d79b
153185a480
hex1f9c37fd

530331645 has 16 divisors (see below), whose sum is σ = 849240000. Its totient is φ = 282607104.

The previous prime is 530331587. The next prime is 530331647. The reversal of 530331645 is 546133035.

It is a happy number.

It is not a de Polignac number, because 530331645 - 27 = 530331517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530331647) 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, 4582 + ... + 32888.

It is an arithmetic number, because the mean of its divisors is an integer number (53077500).

Almost surely, 2530331645 is an apocalyptic number.

It is an amenable number.

530331645 is a deficient number, since it is larger than the sum of its proper divisors (318908355).

530331645 is a wasteful number, since it uses less digits than its factorization.

530331645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29564.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 530331645 is about 23028.9306091273. The cubic root of 530331645 is about 809.4359966453.

The spelling of 530331645 in words is "five hundred thirty million, three hundred thirty-one thousand, six hundred forty-five".

Divisors: 1 3 5 15 1249 3747 6245 18735 28307 84921 141535 424605 35355443 106066329 176777215 530331645