Base | Representation |
---|---|
bin | 1110101101101… |
… | …10010110110011 |
3 | 22121020220120110 |
4 | 13112312112303 |
5 | 223044232243 |
6 | 20125312403 |
7 | 3026066112 |
oct | 726662663 |
9 | 277226513 |
10 | 123430323 |
11 | 63745035 |
12 | 35405703 |
13 | 1c7583c3 |
14 | 1256dc79 |
15 | ac81e33 |
hex | 75b65b3 |
123430323 has 4 divisors (see below), whose sum is σ = 164573768. Its totient is φ = 82286880.
The previous prime is 123430297. The next prime is 123430331. The reversal of 123430323 is 323034321.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 123430323 - 29 = 123429811 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 123430323.
It is not an unprimeable number, because it can be changed into a prime (123430343) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20571718 + ... + 20571723.
It is an arithmetic number, because the mean of its divisors is an integer number (41143442).
Almost surely, 2123430323 is an apocalyptic number.
123430323 is a deficient number, since it is larger than the sum of its proper divisors (41143445).
123430323 is an equidigital number, since it uses as much as digits as its factorization.
123430323 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41143444.
The product of its (nonzero) digits is 1296, while the sum is 21.
The square root of 123430323 is about 11109.9200267149. The cubic root of 123430323 is about 497.8982752177.
Adding to 123430323 its reverse (323034321), we get a palindrome (446464644).
It can be divided in two parts, 123430 and 323, that added together give a triangular number (123753 = T497).
The spelling of 123430323 in words is "one hundred twenty-three million, four hundred thirty thousand, three hundred twenty-three".
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