Base | Representation |
---|---|
bin | 11011101001111… |
… | …00100010001010 |
3 | 121011111222011221 |
4 | 31310330202022 |
5 | 433341430432 |
6 | 35004112254 |
7 | 5514552661 |
oct | 1564744212 |
9 | 534458157 |
10 | 231983242 |
11 | 109a48497 |
12 | 6583568a |
13 | 390a4bba |
14 | 22b49dd8 |
15 | 15575b97 |
hex | dd3c88a |
231983242 has 8 divisors (see below), whose sum is σ = 348042816. Its totient is φ = 115968972.
The previous prime is 231983239. The next prime is 231983243. The reversal of 231983242 is 242389132.
It is a happy number.
231983242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 231983198 and 231983207.
It is not an unprimeable number, because it can be changed into a prime (231983243) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8233 + ... + 23059.
It is an arithmetic number, because the mean of its divisors is an integer number (43505352).
Almost surely, 2231983242 is an apocalyptic number.
231983242 is a deficient number, since it is larger than the sum of its proper divisors (116059574).
231983242 is a wasteful number, since it uses less digits than its factorization.
231983242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22652.
The product of its digits is 20736, while the sum is 34.
The square root of 231983242 is about 15230.9960934930. The cubic root of 231983242 is about 614.4485699863.
The spelling of 231983242 in words is "two hundred thirty-one million, nine hundred eighty-three thousand, two hundred forty-two".
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