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528556028 = 22711131011307
BaseRepresentation
bin11111100000010…
…001111111111100
31100211120102120012
4133200101333330
52040302243103
6124240442352
716045436450
oct3740217774
91324512505
10528556028
112513a0a70
121290193b8
1385672a60
14502aa660
15316092d8
hex1f811ffc

528556028 has 96 divisors (see below), whose sum is σ = 1255177728. Its totient is φ = 188064000.

The previous prime is 528556013. The next prime is 528556037. The reversal of 528556028 is 820655825.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403751 + ... + 405057.

It is an arithmetic number, because the mean of its divisors is an integer number (13074768).

Almost surely, 2528556028 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 528556028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627588864).

528556028 is an abundant number, since it is smaller than the sum of its proper divisors (726621700).

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

528556028 is a wasteful number, since it uses less digits than its factorization.

528556028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 528556028 is about 22990.3464088734. The cubic root of 528556028 is about 808.5316220907.

The spelling of 528556028 in words is "five hundred twenty-eight million, five hundred fifty-six thousand, twenty-eight".

Divisors: 1 2 4 7 11 13 14 22 26 28 44 52 77 91 101 143 154 182 202 286 308 364 404 572 707 1001 1111 1307 1313 1414 2002 2222 2614 2626 2828 4004 4444 5228 5252 7777 9149 9191 14377 14443 15554 16991 18298 18382 28754 28886 31108 33982 36596 36764 57508 57772 67964 100639 101101 118937 132007 186901 201278 202202 237874 264014 373802 402556 404404 475748 528028 747604 924049 1308307 1452077 1716091 1848098 2616614 2904154 3432182 3696196 5233228 5808308 6864364 10164539 12012637 18877001 20329078 24025274 37754002 40658156 48050548 75508004 132139007 264278014 528556028