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527525305 = 5398926449
BaseRepresentation
bin11111011100010…
…110010110111001
31100202122001200021
4133130112112321
52040021302210
6124202410441
716033614436
oct3734262671
91322561607
10527525305
1125085762a
12128800a21
13853a1868
14500bcb8d
15314a3bda
hex1f7165b9

527525305 has 8 divisors (see below), whose sum is σ = 633213000. Its totient is φ = 421898496.

The previous prime is 527525279. The next prime is 527525363. The reversal of 527525305 is 503525725.

It can be written as a sum of positive squares in 4 ways, for example, as 3069504 + 524455801 = 1752^2 + 22901^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-527525305 is a prime.

It is a super-3 number, since 3×5275253053 (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6721 + ... + 33169.

It is an arithmetic number, because the mean of its divisors is an integer number (79151625).

Almost surely, 2527525305 is an apocalyptic number.

It is an amenable number.

527525305 is a deficient number, since it is larger than the sum of its proper divisors (105687695).

527525305 is a wasteful number, since it uses less digits than its factorization.

527525305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30443.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 527525305 is about 22967.9190393906. The cubic root of 527525305 is about 808.0057147792.

The spelling of 527525305 in words is "five hundred twenty-seven million, five hundred twenty-five thousand, three hundred five".

Divisors: 1 5 3989 19945 26449 132245 105505061 527525305