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528550285 = 5131806947
BaseRepresentation
bin11111100000010…
…000100110001101
31100211120010200111
4133200100212031
52040302102120
6124240400021
716045413634
oct3740204615
91324503614
10528550285
1125139771a
12129016011
1385670263
14502a851b
153160775a
hex1f81098d

528550285 has 8 divisors (see below), whose sum is σ = 639102816. Its totient is φ = 419611920.

The previous prime is 528550277. The next prime is 528550301. The reversal of 528550285 is 582055825.

It is a happy number.

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

It is not a de Polignac number, because 528550285 - 23 = 528550277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402819 + ... + 404128.

It is an arithmetic number, because the mean of its divisors is an integer number (79887852).

Almost surely, 2528550285 is an apocalyptic number.

It is an amenable number.

528550285 is a deficient number, since it is larger than the sum of its proper divisors (110552531).

528550285 is a wasteful number, since it uses less digits than its factorization.

528550285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807083.

The product of its (nonzero) digits is 160000, while the sum is 40.

The square root of 528550285 is about 22990.2215082848. The cubic root of 528550285 is about 808.5286937263.

The spelling of 528550285 in words is "five hundred twenty-eight million, five hundred fifty thousand, two hundred eighty-five".

Divisors: 1 5 131 655 806947 4034735 105710057 528550285