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528352505 = 5891187309
BaseRepresentation
bin11111011111100…
…000010011111001
31100211012002101022
4133133200103321
52040224240010
6124232232225
716043631212
oct3737402371
91324162338
10528352505
1125127206a
12128b3b675
1385601225
1450256409
15315b8d55
hex1f7e04f9

528352505 has 8 divisors (see below), whose sum is σ = 641147400. Its totient is φ = 417932416.

The previous prime is 528352477. The next prime is 528352507. The reversal of 528352505 is 505253825.

It can be written as a sum of positive squares in 4 ways, for example, as 74321641 + 454030864 = 8621^2 + 21308^2 .

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 528352505 - 26 = 528352441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (528352507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593210 + ... + 594099.

It is an arithmetic number, because the mean of its divisors is an integer number (80143425).

Almost surely, 2528352505 is an apocalyptic number.

It is an amenable number.

528352505 is a deficient number, since it is larger than the sum of its proper divisors (112794895).

528352505 is a wasteful number, since it uses less digits than its factorization.

528352505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187403.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 528352505 is about 22985.9197118584. The cubic root of 528352505 is about 808.4278324588.

The spelling of 528352505 in words is "five hundred twenty-eight million, three hundred fifty-two thousand, five hundred five".

Divisors: 1 5 89 445 1187309 5936545 105670501 528352505