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528870565 = 5659160507
BaseRepresentation
bin11111100001011…
…110110010100101
31100212011102000201
4133201132302211
52040342324230
6124251310501
716051216456
oct3741366245
91325142021
10528870565
11251596313
1212914b431
1385752c82
145034d12d
153166c5ca
hex1f85eca5

528870565 has 8 divisors (see below), whose sum is σ = 635611680. Its totient is φ = 422451792.

The previous prime is 528870541. The next prime is 528870569. The reversal of 528870565 is 565078825.

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

It is a cyclic number.

It is not a de Polignac number, because 528870565 - 211 = 528868517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528870569) 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, 76959 + ... + 83548.

It is an arithmetic number, because the mean of its divisors is an integer number (79451460).

Almost surely, 2528870565 is an apocalyptic number.

It is an amenable number.

528870565 is a deficient number, since it is larger than the sum of its proper divisors (106741115).

528870565 is a wasteful number, since it uses less digits than its factorization.

528870565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161171.

The product of its (nonzero) digits is 672000, while the sum is 46.

The square root of 528870565 is about 22997.1860235117. The cubic root of 528870565 is about 808.6919725978.

The spelling of 528870565 in words is "five hundred twenty-eight million, eight hundred seventy thousand, five hundred sixty-five".

Divisors: 1 5 659 3295 160507 802535 105774113 528870565