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525530383 = 7319724967
BaseRepresentation
bin11111010100101…
…111010100001111
31100121212201011021
4133110233110033
52034013433013
6124051535011
716010635360
oct3724572417
91317781137
10525530383
1124a714834
12127bba467
1384b53831
144db1db67
153120ca8d
hex1f52f50f

525530383 has 16 divisors (see below), whose sum is σ = 626397184. Its totient is φ = 431412480.

The previous prime is 525530363. The next prime is 525530389. The reversal of 525530383 is 383035525.

It is a cyclic number.

It is not a de Polignac number, because 525530383 - 29 = 525529871 is a prime.

It is a super-2 number, since 2×5255303832 = 552364366912253378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525530389) 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, 8566 + ... + 33532.

It is an arithmetic number, because the mean of its divisors is an integer number (39149824).

Almost surely, 2525530383 is an apocalyptic number.

525530383 is a deficient number, since it is larger than the sum of its proper divisors (100866801).

525530383 is a wasteful number, since it uses less digits than its factorization.

525530383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25102.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 525530383 is about 22924.4494590383. The cubic root of 525530383 is about 806.9858935257.

The spelling of 525530383 in words is "five hundred twenty-five million, five hundred thirty thousand, three hundred eighty-three".

Divisors: 1 7 31 97 217 679 3007 21049 24967 174769 773977 2421799 5417839 16952593 75075769 525530383