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231141234 = 23332311593
BaseRepresentation
bin11011100011011…
…10111101110010
3121002221012011110
431301232331302
5433133004414
634534054150
75504445102
oct1561567562
9532835143
10231141234
11109522915
12654aa356
1338b6b87c
14229ab202
151545b459
hexdc6ef72

231141234 has 16 divisors (see below), whose sum is σ = 462461472. Its totient is φ = 77017248.

The previous prime is 231141233. The next prime is 231141269. The reversal of 231141234 is 432141132.

It is a self number, because there is not a number n which added to its sum of digits gives 231141234.

It is not an unprimeable number, because it can be changed into a prime (231141233) 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, 14142 + ... + 25734.

It is an arithmetic number, because the mean of its divisors is an integer number (28903842).

Almost surely, 2231141234 is an apocalyptic number.

231141234 is an abundant number, since it is smaller than the sum of its proper divisors (231320238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231141234 is a wasteful number, since it uses less digits than its factorization.

231141234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14921.

The product of its digits is 576, while the sum is 21.

The square root of 231141234 is about 15203.3297010885. The cubic root of 231141234 is about 613.7042664711.

Adding to 231141234 its reverse (432141132), we get a palindrome (663282366).

The spelling of 231141234 in words is "two hundred thirty-one million, one hundred forty-one thousand, two hundred thirty-four".

Divisors: 1 2 3 6 3323 6646 9969 11593 19938 23186 34779 69558 38523539 77047078 115570617 231141234