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80528 = 247719
BaseRepresentation
bin10011101010010000
311002110112
4103222100
510034103
61420452
7453530
oct235220
9132415
1080528
1155558
123a728
132a866
14214c0
1518cd8
hex13a90

80528 has 20 divisors (see below), whose sum is σ = 178560. Its totient is φ = 34464.

The previous prime is 80527. The next prime is 80537. The reversal of 80528 is 82508.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (80527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 471.

It is an arithmetic number, because the mean of its divisors is an integer number (8928).

280528 is an apocalyptic number.

It is an amenable number.

80528 is an abundant number, since it is smaller than the sum of its proper divisors (98032).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89280).

80528 is a wasteful number, since it uses less digits than its factorization.

80528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 80528 is about 283.7745584086. The cubic root of 80528 is about 43.1832811391.

The spelling of 80528 in words is "eighty thousand, five hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 719 1438 2876 5033 5752 10066 11504 20132 40264 80528