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530306331 = 32326928571
BaseRepresentation
bin11111100110111…
…101010100011011
31100221212100112020
4133212331110123
52041224300311
6124342145523
716066346412
oct3746752433
91327770466
10530306331
11252386aa5
121297222a3
1385b36639
1450604479
1531852c06
hex1f9bd51b

530306331 has 16 divisors (see below), whose sum is σ = 740586240. Its totient is φ = 336897440.

The previous prime is 530306317. The next prime is 530306333. The reversal of 530306331 is 133603035.

It is a cyclic number.

It is not a de Polignac number, because 530306331 - 25 = 530306299 is a prime.

It is a super-2 number, since 2×5303063312 = 562449609397363122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (530306333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4276 + ... + 32846.

It is an arithmetic number, because the mean of its divisors is an integer number (46286640).

Almost surely, 2530306331 is an apocalyptic number.

530306331 is a deficient number, since it is larger than the sum of its proper divisors (210279909).

530306331 is a wasteful number, since it uses less digits than its factorization.

530306331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28866.

The product of its (nonzero) digits is 2430, while the sum is 24.

The square root of 530306331 is about 23028.3809895529. The cubic root of 530306331 is about 809.4231176672.

Adding to 530306331 its reverse (133603035), we get a palindrome (663909366).

The spelling of 530306331 in words is "five hundred thirty million, three hundred six thousand, three hundred thirty-one".

Divisors: 1 3 23 69 269 807 6187 18561 28571 85713 657133 1971399 7685599 23056797 176768777 530306331