Base | Representation |
---|---|
bin | 11011100011001… |
… | …11111000111111 |
3 | 121002212201102011 |
4 | 31301213320333 |
5 | 433131043010 |
6 | 34533312051 |
7 | 5504264443 |
oct | 1561477077 |
9 | 532781364 |
10 | 231112255 |
11 | 109503070 |
12 | 65495627 |
13 | 38b5b61a |
14 | 229a0823 |
15 | 15452a8a |
hex | dc67e3f |
231112255 has 16 divisors (see below), whose sum is σ = 306198144. Its totient is φ = 166053280.
The previous prime is 231112243. The next prime is 231112267. The reversal of 231112255 is 552211132.
It is an interprime number because it is at equal distance from previous prime (231112243) and next prime (231112267).
It is not a de Polignac number, because 231112255 - 211 = 231110207 is a prime.
It is a super-2 number, since 2×2311122552 = 106825748822370050, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20749 + ... + 29878.
It is an arithmetic number, because the mean of its divisors is an integer number (19137384).
Almost surely, 2231112255 is an apocalyptic number.
231112255 is a deficient number, since it is larger than the sum of its proper divisors (75085889).
231112255 is a wasteful number, since it uses less digits than its factorization.
231112255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50726.
The product of its digits is 600, while the sum is 22.
The square root of 231112255 is about 15202.3766234099. The cubic root of 231112255 is about 613.6786179691.
Adding to 231112255 its reverse (552211132), we get a palindrome (783323387).
The spelling of 231112255 in words is "two hundred thirty-one million, one hundred twelve thousand, two hundred fifty-five".
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