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530507857 = 11232239403
BaseRepresentation
bin11111100111101…
…110100001010001
31100222020120222011
4133213232201101
52041302222412
6124350342521
716101146065
oct3747564121
91328216864
10530507857
11252504450
121297baa41
1385ba7299
1450657aa5
15318927a7
hex1f9ee851

530507857 has 16 divisors (see below), whose sum is σ = 606670848. Its totient is φ = 459193680.

The previous prime is 530507839. The next prime is 530507891. The reversal of 530507857 is 758705035.

It is not a de Polignac number, because 530507857 - 219 = 529983569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530507807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51718 + ... + 61120.

It is an arithmetic number, because the mean of its divisors is an integer number (37916928).

Almost surely, 2530507857 is an apocalyptic number.

It is an amenable number.

530507857 is a deficient number, since it is larger than the sum of its proper divisors (76162991).

530507857 is a wasteful number, since it uses less digits than its factorization.

530507857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 530507857 is about 23032.7561746309. The cubic root of 530507857 is about 809.5256364916.

The spelling of 530507857 in words is "five hundred thirty million, five hundred seven thousand, eight hundred fifty-seven".

Divisors: 1 11 23 223 253 2453 5129 9403 56419 103433 216269 2096869 2378959 23065559 48227987 530507857