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252334231 = 1913280749
BaseRepresentation
bin11110000101001…
…01000010010111
3122120210220111021
433002211002113
51004044143411
641012222011
76152543212
oct1702450227
9576726437
10252334231
1111a488496
127060a907
134037bcc6
1425726779
1517245a71
hexf0a5097

252334231 has 4 divisors (see below), whose sum is σ = 265615000. Its totient is φ = 239053464.

The previous prime is 252334207. The next prime is 252334253. The reversal of 252334231 is 132433252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252334231 - 227 = 118116503 is a prime.

It is a super-2 number, since 2×2523342312 = 127345128268722722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252334196 and 252334205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252332231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6640356 + ... + 6640393.

It is an arithmetic number, because the mean of its divisors is an integer number (66403750).

Almost surely, 2252334231 is an apocalyptic number.

252334231 is a deficient number, since it is larger than the sum of its proper divisors (13280769).

252334231 is a wasteful number, since it uses less digits than its factorization.

252334231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13280768.

The product of its digits is 4320, while the sum is 25.

The square root of 252334231 is about 15885.0316650613. The cubic root of 252334231 is about 631.9150854977.

Adding to 252334231 its reverse (132433252), we get a palindrome (384767483).

The spelling of 252334231 in words is "two hundred fifty-two million, three hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 19 13280749 252334231