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528981142 = 26110939779
BaseRepresentation
bin11111100001111…
…001110010010110
31100212101000201011
4133201321302112
52040404344032
6124253522434
716052160034
oct3741716226
91325330634
10528981142
112516613a8
121291a341a
13857913c1
145037b554
1531690247
hex1f879c96

528981142 has 16 divisors (see below), whose sum is σ = 813898800. Its totient is φ = 257761440.

The previous prime is 528981133. The next prime is 528981157. The reversal of 528981142 is 241189825.

It is a junction number, because it is equal to n+sod(n) for n = 528981095 and 528981104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6592 + ... + 33187.

It is an arithmetic number, because the mean of its divisors is an integer number (50868675).

Almost surely, 2528981142 is an apocalyptic number.

528981142 is a deficient number, since it is larger than the sum of its proper divisors (284917658).

528981142 is a wasteful number, since it uses less digits than its factorization.

528981142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39951.

The product of its digits is 46080, while the sum is 40.

The square root of 528981142 is about 22999.5900398246. The cubic root of 528981142 is about 808.7483294878.

The spelling of 528981142 in words is "five hundred twenty-eight million, nine hundred eighty-one thousand, one hundred forty-two".

Divisors: 1 2 61 109 122 218 6649 13298 39779 79558 2426519 4335911 4853038 8671822 264490571 528981142