Base | Representation |
---|---|
bin | 101100101100… |
… | …0010001001111 |
3 | 1122002101020001 |
4 | 1121120101033 |
5 | 21444231343 |
6 | 2154105131 |
7 | 403103455 |
oct | 131302117 |
9 | 48071201 |
10 | 23430223 |
11 | 12253523 |
12 | 7a1b1a7 |
13 | 4b1484b |
14 | 317c9d5 |
15 | 20cc44d |
hex | 165844f |
23430223 has 2 divisors, whose sum is σ = 23430224. Its totient is φ = 23430222.
The previous prime is 23430221. The next prime is 23430263. The reversal of 23430223 is 32203432.
23430223 is nontrivially palindromic in base 12.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 23430223 - 21 = 23430221 is a prime.
Together with 23430221, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 23430223.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23430221) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715111 + 11715112.
It is an arithmetic number, because the mean of its divisors is an integer number (11715112).
Almost surely, 223430223 is an apocalyptic number.
23430223 is a deficient number, since it is larger than the sum of its proper divisors (1).
23430223 is an equidigital number, since it uses as much as digits as its factorization.
23430223 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 19.
The square root of 23430223 is about 4840.4775590844. The cubic root of 23430223 is about 286.1489394905.
Adding to 23430223 its reverse (32203432), we get a palindrome (55633655).
It can be divided in two parts, 23430 and 223, that added together give a triangular number (23653 = T217).
The spelling of 23430223 in words is "twenty-three million, four hundred thirty thousand, two hundred twenty-three".
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