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528266289 = 31223143981
BaseRepresentation
bin11111011111001…
…011010000110001
31100211000201010010
4133133023100301
52040214010124
6124230325133
716043121645
oct3737132061
91324021103
10528266289
11251213311
12128ab97a9
13855a0c05
1450232c25
153159d529
hex1f7cb431

528266289 has 8 divisors (see below), whose sum is σ = 704935872. Its totient is φ = 351887120.

The previous prime is 528266287. The next prime is 528266351. The reversal of 528266289 is 982662825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 528266289 - 21 = 528266287 is a prime.

It is a super-3 number, since 3×5282662893 (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (528266281) by changing a digit.

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, 68322 + ... + 75659.

It is an arithmetic number, because the mean of its divisors is an integer number (88116984).

Almost surely, 2528266289 is an apocalyptic number.

It is an amenable number.

528266289 is a deficient number, since it is larger than the sum of its proper divisors (176669583).

528266289 is a wasteful number, since it uses less digits than its factorization.

528266289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145207.

The product of its digits is 829440, while the sum is 48.

The square root of 528266289 is about 22984.0442263758. The cubic root of 528266289 is about 808.3838572688.

The spelling of 528266289 in words is "five hundred twenty-eight million, two hundred sixty-six thousand, two hundred eighty-nine".

Divisors: 1 3 1223 3669 143981 431943 176088763 528266289