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234585431 = 1723957737
BaseRepresentation
bin11011111101101…
…11110101010111
3121100102011201022
431332313311113
5440023213211
635135551355
75545641353
oct1576676527
9540364638
10234585431
11110465563
126668b55b
13397a6462
1423226463
15158dbbdb
hexdfb7d57

234585431 has 8 divisors (see below), whose sum is σ = 249428160. Its totient is φ = 219858688.

The previous prime is 234585391. The next prime is 234585467. The reversal of 234585431 is 134585432.

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

It is not a de Polignac number, because 234585431 - 210 = 234584407 is a prime.

It is a super-2 number, since 2×2345854312 = 110060648874911522, 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 = 234585391 and 234585400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234582431) 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, 24806 + ... + 32931.

It is an arithmetic number, because the mean of its divisors is an integer number (31178520).

Almost surely, 2234585431 is an apocalyptic number.

234585431 is a deficient number, since it is larger than the sum of its proper divisors (14842729).

234585431 is a wasteful number, since it uses less digits than its factorization.

234585431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57993.

The product of its digits is 57600, while the sum is 35.

The square root of 234585431 is about 15316.1819981352. The cubic root of 234585431 is about 616.7374851547.

Subtracting from 234585431 its reverse (134585432), we obtain a palindrome (99999999).

The spelling of 234585431 in words is "two hundred thirty-four million, five hundred eighty-five thousand, four hundred thirty-one".

Divisors: 1 17 239 4063 57737 981529 13799143 234585431