Base | Representation |
---|---|
bin | 11011100011010… |
… | …01110010011000 |
3 | 121002220010001220 |
4 | 31301221302120 |
5 | 433131320044 |
6 | 34533412040 |
7 | 5504326212 |
oct | 1561516230 |
9 | 532803056 |
10 | 231120024 |
11 | 109508993 |
12 | 6549a020 |
13 | 38b62015 |
14 | 229a35b2 |
15 | 15455019 |
hex | dc69c98 |
231120024 has 32 divisors (see below), whose sum is σ = 597726000. Its totient is φ = 74383232.
The previous prime is 231120023. The next prime is 231120037. The reversal of 231120024 is 420021132.
231120024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 231119985 and 231120012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231120023) 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, 165339 + ... + 166730.
Almost surely, 2231120024 is an apocalyptic number.
231120024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
231120024 is an abundant number, since it is smaller than the sum of its proper divisors (366605976).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231120024 is a wasteful number, since it uses less digits than its factorization.
231120024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 332107 (or 332103 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 231120024 is about 15202.6321405209. The cubic root of 231120024 is about 613.6854943039.
Adding to 231120024 its reverse (420021132), we get a palindrome (651141156).
The spelling of 231120024 in words is "two hundred thirty-one million, one hundred twenty thousand, twenty-four".
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