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525242271 = 3181967297
BaseRepresentation
bin11111010011101…
…000111110011111
31100121100001221110
4133103220332133
52033430223041
6124041433103
716005325401
oct3723507637
91317301843
10525242271
1124a538324
12127a9b793
1384a82658
144da86b71
15311a2516
hex1f4e8f9f

525242271 has 8 divisors (see below), whose sum is σ = 704192944. Its totient is φ = 348226560.

The previous prime is 525242261. The next prime is 525242339. The reversal of 525242271 is 172242525.

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

It is not a de Polignac number, because 525242271 - 25 = 525242239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525242261) 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, 483106 + ... + 484191.

It is an arithmetic number, because the mean of its divisors is an integer number (88024118).

Almost surely, 2525242271 is an apocalyptic number.

525242271 is a deficient number, since it is larger than the sum of its proper divisors (178950673).

525242271 is a wasteful number, since it uses less digits than its factorization.

525242271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967481.

The product of its digits is 11200, while the sum is 30.

The square root of 525242271 is about 22918.1646516470. The cubic root of 525242271 is about 806.8383950312.

Adding to 525242271 its reverse (172242525), we get a palindrome (697484796).

The spelling of 525242271 in words is "five hundred twenty-five million, two hundred forty-two thousand, two hundred seventy-one".

Divisors: 1 3 181 543 967297 2901891 175080757 525242271