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528216 = 233131693
BaseRepresentation
bin10000000111101011000
3222211120120
42000331120
5113400331
615153240
74326663
oct2007530
9884516
10528216
11330947
12215820
13156570
14da6da
15a6796
hex80f58

528216 has 32 divisors (see below), whose sum is σ = 1422960. Its totient is φ = 162432.

The previous prime is 528197. The next prime is 528217. The reversal of 528216 is 612825.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528217) by changing a digit.

528216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535 + ... + 1158.

2528216 is an apocalyptic number.

It is an amenable number.

528216 is an abundant number, since it is smaller than the sum of its proper divisors (894744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

528216 is a wasteful number, since it uses less digits than its factorization.

528216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1711 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 528216 is about 726.7846998940. The cubic root of 528216 is about 80.8358204735.

The spelling of 528216 in words is "five hundred twenty-eight thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1693 3386 5079 6772 10158 13544 20316 22009 40632 44018 66027 88036 132054 176072 264108 528216