Base | Representation |
---|---|
bin | 11011100010011… |
… | …01001110001111 |
3 | 121002200011120112 |
4 | 31301031032033 |
5 | 433114044043 |
6 | 34531110235 |
7 | 5503331126 |
oct | 1561151617 |
9 | 532604515 |
10 | 231003023 |
11 | 109438a99 |
12 | 6544237b |
13 | 38b209a4 |
14 | 22972abd |
15 | 15430518 |
hex | dc4d38f |
231003023 has 4 divisors (see below), whose sum is σ = 231425880. Its totient is φ = 230580168.
The previous prime is 231003013. The next prime is 231003037. The reversal of 231003023 is 320300132.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 231003023 - 212 = 230998927 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 231002989 and 231003007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231003013) 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, 210608 + ... + 211701.
It is an arithmetic number, because the mean of its divisors is an integer number (57856470).
Almost surely, 2231003023 is an apocalyptic number.
231003023 is a deficient number, since it is larger than the sum of its proper divisors (422857).
231003023 is an equidigital number, since it uses as much as digits as its factorization.
231003023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 422856.
The product of its (nonzero) digits is 108, while the sum is 14.
The square root of 231003023 is about 15198.7836026440. The cubic root of 231003023 is about 613.5819205058.
Adding to 231003023 its reverse (320300132), we get a palindrome (551303155).
The spelling of 231003023 in words is "two hundred thirty-one million, three thousand, twenty-three".
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