Base | Representation |
---|---|
bin | 10101100010101011… |
… | …001011000101000111 |
3 | 2012200222210001200211 |
4 | 111202223023011013 |
5 | 334332330234343 |
6 | 14343111020251 |
7 | 1446122325562 |
oct | 254253130507 |
9 | 65628701624 |
10 | 23130321223 |
11 | 989a510759 |
12 | 459636a687 |
13 | 224808ac09 |
14 | 1195d334d9 |
15 | 9059a379d |
hex | 562acb147 |
23130321223 has 4 divisors (see below), whose sum is σ = 23136726808. Its totient is φ = 23123915640.
The previous prime is 23130321217. The next prime is 23130321281. The reversal of 23130321223 is 32212303132.
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 23130321223 - 25 = 23130321191 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 23130321194 and 23130321203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23130321523) 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, 3197373 + ... + 3204598.
It is an arithmetic number, because the mean of its divisors is an integer number (5784181702).
Almost surely, 223130321223 is an apocalyptic number.
23130321223 is a deficient number, since it is larger than the sum of its proper divisors (6405585).
23130321223 is an equidigital number, since it uses as much as digits as its factorization.
23130321223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6405584.
The product of its (nonzero) digits is 1296, while the sum is 22.
Adding to 23130321223 its reverse (32212303132), we get a palindrome (55342624355).
The spelling of 23130321223 in words is "twenty-three billion, one hundred thirty million, three hundred twenty-one thousand, two hundred twenty-three".
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