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528898980 = 22358814983
BaseRepresentation
bin11111100001100…
…101101110100100
31100212012212000010
4133201211232210
52040344231410
6124252050220
716051365351
oct3741455644
91325185003
10528898980
112516056a5
12129163970
1385762b9c
1450359628
1531675c20
hex1f865ba4

528898980 has 24 divisors (see below), whose sum is σ = 1480917312. Its totient is φ = 141039712.

The previous prime is 528898963. The next prime is 528898987. The reversal of 528898980 is 89898825.

It is a self number, because there is not a number n which added to its sum of digits gives 528898980.

It is not an unprimeable number, because it can be changed into a prime (528898987) 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, 4407432 + ... + 4407551.

It is an arithmetic number, because the mean of its divisors is an integer number (61704888).

Almost surely, 2528898980 is an apocalyptic number.

It is an amenable number.

528898980 is an abundant number, since it is smaller than the sum of its proper divisors (952018332).

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

528898980 is a wasteful number, since it uses less digits than its factorization.

528898980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814995 (or 8814993 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 57.

The square root of 528898980 is about 22997.8038081900. The cubic root of 528898980 is about 808.7064553921.

The spelling of 528898980 in words is "five hundred twenty-eight million, eight hundred ninety-eight thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 8814983 17629966 26444949 35259932 44074915 52889898 88149830 105779796 132224745 176299660 264449490 528898980