Base | Representation |
---|---|
bin | 11011100010011… |
… | …11101010100000 |
3 | 121002200200021221 |
4 | 31301033222200 |
5 | 433114404044 |
6 | 34531224424 |
7 | 5503402234 |
oct | 1561175240 |
9 | 532620257 |
10 | 231013024 |
11 | 109445560 |
12 | 65448114 |
13 | 38b253c8 |
14 | 229765c4 |
15 | 15433484 |
hex | dc4faa0 |
231013024 has 48 divisors (see below), whose sum is σ = 508286016. Its totient is φ = 102438400.
The previous prime is 231013009. The next prime is 231013031. The reversal of 231013024 is 420310132.
It is a happy number.
231013024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 231012989 and 231013007.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6429 + ... + 22435.
It is an arithmetic number, because the mean of its divisors is an integer number (10589292).
Almost surely, 2231013024 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 231013024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254143008).
231013024 is an abundant number, since it is smaller than the sum of its proper divisors (277272992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231013024 is a wasteful number, since it uses less digits than its factorization.
231013024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16069 (or 16061 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 231013024 is about 15199.1126056754. The cubic root of 231013024 is about 613.5907751435.
Adding to 231013024 its reverse (420310132), we get a palindrome (651323156).
The spelling of 231013024 in words is "two hundred thirty-one million, thirteen thousand, twenty-four".
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