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530385393 = 3176795131
BaseRepresentation
bin11111100111010…
…000100111110001
31100222000100222110
4133213100213301
52041234313033
6124343555533
716100126046
oct3747204761
91328010873
10530385393
1125243043a
1212975bba9
1385b63615
14506251cd
153186b363
hex1f9d09f1

530385393 has 4 divisors (see below), whose sum is σ = 707180528. Its totient is φ = 353590260.

The previous prime is 530385391. The next prime is 530385409. The reversal of 530385393 is 393583035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 530385393 - 21 = 530385391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530385391) 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 3 ways as a sum of consecutive naturals, for example, 88397563 + ... + 88397568.

It is an arithmetic number, because the mean of its divisors is an integer number (176795132).

Almost surely, 2530385393 is an apocalyptic number.

It is an amenable number.

530385393 is a deficient number, since it is larger than the sum of its proper divisors (176795135).

530385393 is a wasteful number, since it uses less digits than its factorization.

530385393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176795134.

The product of its (nonzero) digits is 145800, while the sum is 39.

The square root of 530385393 is about 23030.0975464717. The cubic root of 530385393 is about 809.4633406018.

The spelling of 530385393 in words is "five hundred thirty million, three hundred eighty-five thousand, three hundred ninety-three".

Divisors: 1 3 176795131 530385393