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525260249 = 3120898111
BaseRepresentation
bin11111010011101…
…101010111011001
31100121100222121022
4133103231113121
52033431311444
6124042052225
716005431663
oct3723552731
91317328538
10525260249
1124a54a888
12127aaa075
1384a8a8a7
144da8d533
15311a79ee
hex1f4ed5d9

525260249 has 8 divisors (see below), whose sum is σ = 542530560. Its totient is φ = 508010400.

The previous prime is 525260233. The next prime is 525260261. The reversal of 525260249 is 942062525.

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 525260249 - 24 = 525260233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525260279) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60704 + ... + 68814.

It is an arithmetic number, because the mean of its divisors is an integer number (67816320).

Almost surely, 2525260249 is an apocalyptic number.

It is an amenable number.

525260249 is a deficient number, since it is larger than the sum of its proper divisors (17270311).

525260249 is a wasteful number, since it uses less digits than its factorization.

525260249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 525260249 is about 22918.5568699253. The cubic root of 525260249 is about 806.8476004182.

The spelling of 525260249 in words is "five hundred twenty-five million, two hundred sixty thousand, two hundred forty-nine".

Divisors: 1 31 2089 8111 64759 251441 16943879 525260249