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528087 = 3725147
BaseRepresentation
bin10000000111011010111
3222211101210
42000323113
5113344322
615152503
74326420
oct2007327
9884353
10528087
1133083a
12215733
131564a1
14da647
15a670c
hex80ed7

528087 has 8 divisors (see below), whose sum is σ = 804736. Its totient is φ = 301752.

The previous prime is 528053. The next prime is 528091. The reversal of 528087 is 780825.

528087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 528087 - 210 = 527063 is a prime.

It is a Duffinian number.

528087 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528087.

It is not an unprimeable number, because it can be changed into a prime (528097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12553 + ... + 12594.

It is an arithmetic number, because the mean of its divisors is an integer number (100592).

2528087 is an apocalyptic number.

528087 is a deficient number, since it is larger than the sum of its proper divisors (276649).

528087 is a wasteful number, since it uses less digits than its factorization.

528087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25157.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 528087 is about 726.6959474223. The cubic root of 528087 is about 80.8292394096.

The spelling of 528087 in words is "five hundred twenty-eight thousand, eighty-seven".

Divisors: 1 3 7 21 25147 75441 176029 528087