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530742385 = 5461230257
BaseRepresentation
bin11111101000100…
…111110001110001
31100222200111200101
4133220213301301
52041332224020
6124355352401
716103143615
oct3750476161
91328614611
10530742385
11252654678
121298b2701
1385c59c64
14506b9345
15318dc00a
hex1fa27c71

530742385 has 8 divisors (see below), whose sum is σ = 638275176. Its totient is φ = 423671040.

The previous prime is 530742383. The next prime is 530742391. The reversal of 530742385 is 583247035.

It can be written as a sum of positive squares in 4 ways, for example, as 269361 + 530473024 = 519^2 + 23032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 530742385 - 21 = 530742383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530742383) 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 7 ways as a sum of consecutive naturals, for example, 112824 + ... + 117433.

It is an arithmetic number, because the mean of its divisors is an integer number (79784397).

Almost surely, 2530742385 is an apocalyptic number.

It is an amenable number.

530742385 is a deficient number, since it is larger than the sum of its proper divisors (107532791).

530742385 is a wasteful number, since it uses less digits than its factorization.

530742385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230723.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 530742385 is about 23037.8467960875. The cubic root of 530742385 is about 809.6449111674.

The spelling of 530742385 in words is "five hundred thirty million, seven hundred forty-two thousand, three hundred eighty-five".

Divisors: 1 5 461 2305 230257 1151285 106148477 530742385