Base | Representation |
---|---|
bin | 1110101100001… |
… | …01011101000111 |
3 | 22120212201210221 |
4 | 13112011131013 |
5 | 223021330043 |
6 | 20121125211 |
7 | 3024303130 |
oct | 726053507 |
9 | 276781727 |
10 | 123230023 |
11 | 636185a4 |
12 | 35329807 |
13 | 1c6b8197 |
14 | 1251ac87 |
15 | ac428ed |
hex | 7585747 |
123230023 has 16 divisors (see below), whose sum is σ = 143216640. Its totient is φ = 103853376.
The previous prime is 123230011. The next prime is 123230027. The reversal of 123230023 is 320032321.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-123230023 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 123229979 and 123230006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123230027) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138486 + ... + 139372.
It is an arithmetic number, because the mean of its divisors is an integer number (8951040).
Almost surely, 2123230023 is an apocalyptic number.
123230023 is a deficient number, since it is larger than the sum of its proper divisors (19986617).
123230023 is an equidigital number, since it uses as much as digits as its factorization.
123230023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1206.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 123230023 is about 11100.9019002962. The cubic root of 123230023 is about 497.6288032953.
Adding to 123230023 its reverse (320032321), we get a palindrome (443262344).
The spelling of 123230023 in words is "one hundred twenty-three million, two hundred thirty thousand, twenty-three".
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