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528189020 = 225236171861
BaseRepresentation
bin11111011110111…
…000011001011100
31100210212210010022
4133132320121130
52040204022040
6124224531312
716042350452
oct3736703134
91323783108
10528189020
11251170257
12128a80b38
13855749a8
14502129d2
15315856b5
hex1f7b865c

528189020 has 48 divisors (see below), whose sum is σ = 1159921728. Its totient is φ = 201653760.

The previous prime is 528189017. The next prime is 528189029. The reversal of 528189020 is 20981825.

It is a super-4 number, since 4×5281890204 (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528189029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282890 + ... + 284750.

It is an arithmetic number, because the mean of its divisors is an integer number (24165036).

Almost surely, 2528189020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528189020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579960864).

528189020 is an abundant number, since it is smaller than the sum of its proper divisors (631732708).

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

528189020 is a wasteful number, since it uses less digits than its factorization.

528189020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 528189020 is about 22982.3632379266. The cubic root of 528189020 is about 808.3444415049.

The spelling of 528189020 in words is "five hundred twenty-eight million, one hundred eighty-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 617 1234 1861 2468 3085 3722 6170 7444 9305 12340 14191 18610 28382 37220 42803 56764 70955 85606 141910 171212 214015 283820 428030 856060 1148237 2296474 4592948 5741185 11482370 22964740 26409451 52818902 105637804 132047255 264094510 528189020