Base | Representation |
---|---|
bin | 11011011101110… |
… | …10111110111111 |
3 | 121001112201220122 |
4 | 31232322332333 |
5 | 432440412111 |
6 | 34510205155 |
7 | 5465254604 |
oct | 1556727677 |
9 | 531481818 |
10 | 230404031 |
11 | 109069a60 |
12 | 651b37bb |
13 | 38971160 |
14 | 228586ab |
15 | 15362cdb |
hex | dbbafbf |
230404031 has 8 divisors (see below), whose sum is σ = 270684624. Its totient is φ = 193345920.
The previous prime is 230403977. The next prime is 230404033. The reversal of 230404031 is 130404032.
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 230404031 - 210 = 230403007 is a prime.
It is a super-2 number, since 2×2304040312 = 106172035002097922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230404033) 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, 805466 + ... + 805751.
It is an arithmetic number, because the mean of its divisors is an integer number (33835578).
Almost surely, 2230404031 is an apocalyptic number.
230404031 is a deficient number, since it is larger than the sum of its proper divisors (40280593).
230404031 is a wasteful number, since it uses less digits than its factorization.
230404031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1611241.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 230404031 is about 15179.0655509488. The cubic root of 230404031 is about 613.0511211177.
Adding to 230404031 its reverse (130404032), we get a palindrome (360808063).
Subtracting from 230404031 its reverse (130404032), we obtain a palindrome (99999999).
The spelling of 230404031 in words is "two hundred thirty million, four hundred four thousand, thirty-one".
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