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528068520 = 2332571941269
BaseRepresentation
bin11111011110011…
…010111110101000
31100210122122211100
4133132122332220
52040141143040
6124222201400
716041336240
oct3736327650
91323578740
10528068520
11251098771
12128a23260
1385531ba5
14501c0b20
153155eb30
hex1f79afa8

528068520 has 384 divisors, whose sum is σ = 2122848000. Its totient is φ = 111144960.

The previous prime is 528068507. The next prime is 528068531. The reversal of 528068520 is 25860825.

528068520 is a `hidden beast` number, since 52 + 80 + 6 + 8 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1962946 + ... + 1963214.

It is an arithmetic number, because the mean of its divisors is an integer number (5528250).

Almost surely, 2528068520 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 528068520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061424000).

528068520 is an abundant number, since it is smaller than the sum of its proper divisors (1594779480).

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

528068520 is a wasteful number, since it uses less digits than its factorization.

528068520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 528068520 is about 22979.7415129065. The cubic root of 528068520 is about 808.2829654614.

The spelling of 528068520 in words is "five hundred twenty-eight million, sixty-eight thousand, five hundred twenty".