Search a number
-
+
231113234 = 21112018747
BaseRepresentation
bin11011100011010…
…00001000010010
3121002212202202102
431301220020102
5433131110414
634533320402
75504300342
oct1561501022
9532782672
10231113234
11109503880
1265496102
1338b5bbc1
14229a0d22
1515452ede
hexdc68212

231113234 has 16 divisors (see below), whose sum is σ = 378543456. Its totient is φ = 104952000.

The previous prime is 231113219. The next prime is 231113237. The reversal of 231113234 is 432311132.

It is not an unprimeable number, because it can be changed into a prime (231113237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22049 + ... + 30795.

It is an arithmetic number, because the mean of its divisors is an integer number (23658966).

Almost surely, 2231113234 is an apocalyptic number.

231113234 is a deficient number, since it is larger than the sum of its proper divisors (147430222).

231113234 is a wasteful number, since it uses less digits than its factorization.

231113234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961.

The product of its digits is 432, while the sum is 20.

The square root of 231113234 is about 15202.4088222887. The cubic root of 231113234 is about 613.6794844896.

Adding to 231113234 its reverse (432311132), we get a palindrome (663424366).

The spelling of 231113234 in words is "two hundred thirty-one million, one hundred thirteen thousand, two hundred thirty-four".

Divisors: 1 2 11 22 1201 2402 8747 13211 17494 26422 96217 192434 10505147 21010294 115556617 231113234