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530442665 = 51931317839
BaseRepresentation
bin11111100111011…
…110100110101001
31100222010021112122
4133213132212221
52041243131130
6124345121025
716100455034
oct3747364651
91328107478
10530442665
1125246a475
12129789175
1385b836cc
145063c01b
153187d2e5
hex1f9de9a9

530442665 has 16 divisors (see below), whose sum is σ = 672211200. Its totient is φ = 400712832.

The previous prime is 530442637. The next prime is 530442673. The reversal of 530442665 is 566244035.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 530442665 - 222 = 526248361 is a prime.

It is an unprimeable number.

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, 20816 + ... + 38654.

It is an arithmetic number, because the mean of its divisors is an integer number (42013200).

Almost surely, 2530442665 is an apocalyptic number.

It is an amenable number.

530442665 is a deficient number, since it is larger than the sum of its proper divisors (141768535).

530442665 is a wasteful number, since it uses less digits than its factorization.

530442665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18176.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 530442665 is about 23031.3409292642. The cubic root of 530442665 is about 809.4924753382.

The spelling of 530442665 in words is "five hundred thirty million, four hundred forty-two thousand, six hundred sixty-five".

Divisors: 1 5 19 95 313 1565 5947 17839 29735 89195 338941 1694705 5583607 27918035 106088533 530442665