Base | Representation |
---|---|
bin | 11011100011001… |
… | …11010111110011 |
3 | 121002212121111111 |
4 | 31301213113303 |
5 | 433131011011 |
6 | 34533254151 |
7 | 5504255320 |
oct | 1561472763 |
9 | 532777444 |
10 | 231110131 |
11 | 10950150a |
12 | 65494357 |
13 | 38b5a675 |
14 | 2299db47 |
15 | 15452121 |
hex | dc675f3 |
231110131 has 8 divisors (see below), whose sum is σ = 265708800. Its totient is φ = 196907208.
The previous prime is 231110111. The next prime is 231110147. The reversal of 231110131 is 131011132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 231110131 - 223 = 222721523 is a prime.
It is a super-2 number, since 2×2311101312 = 106823785301674322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (231110111) 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, 97681 + ... + 100018.
It is an arithmetic number, because the mean of its divisors is an integer number (33213600).
Almost surely, 2231110131 is an apocalyptic number.
231110131 is a deficient number, since it is larger than the sum of its proper divisors (34598669).
231110131 is a wasteful number, since it uses less digits than its factorization.
231110131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 197873.
The product of its (nonzero) digits is 18, while the sum is 13.
The square root of 231110131 is about 15202.3067657510. The cubic root of 231110131 is about 613.6767379918.
Adding to 231110131 its reverse (131011132), we get a palindrome (362121263).
It can be divided in two parts, 2311101 and 31, that added together give a palindrome (2311132).
The spelling of 231110131 in words is "two hundred thirty-one million, one hundred ten thousand, one hundred thirty-one".
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