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528252881 = 13472233877
BaseRepresentation
bin11111011111000…
…111111111010001
31100211000000201112
4133133013333101
52040213043011
6124230143105
716043034602
oct3737077721
91324000645
10528252881
11251204232
12128ab1a95
1385597a90
145022bda9
153159958b
hex1f7c7fd1

528252881 has 16 divisors (see below), whose sum is σ = 583747584. Its totient is φ = 474980544.

The previous prime is 528252859. The next prime is 528252887. The reversal of 528252881 is 188252825.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-528252881 is a prime.

It is a super-2 number, since 2×5282528812 = 558102212569600322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528252887) 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, 134315 + ... + 138191.

It is an arithmetic number, because the mean of its divisors is an integer number (36484224).

Almost surely, 2528252881 is an apocalyptic number.

It is an amenable number.

528252881 is a deficient number, since it is larger than the sum of its proper divisors (55494703).

528252881 is a wasteful number, since it uses less digits than its factorization.

528252881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160.

The product of its digits is 102400, while the sum is 41.

The square root of 528252881 is about 22983.7525439168. The cubic root of 528252881 is about 808.3770179766.

The spelling of 528252881 in words is "five hundred twenty-eight million, two hundred fifty-two thousand, eight hundred eighty-one".

Divisors: 1 13 47 223 611 2899 3877 10481 50401 136253 182219 864571 2368847 11239423 40634837 528252881