Base | Representation |
---|---|
bin | 11100001001111110… |
… | …101111011010000011 |
3 | 2220000221020112220011 |
4 | 130021332233122003 |
5 | 443403421304443 |
6 | 21515525125351 |
7 | 2120116400020 |
oct | 341176573203 |
9 | 86027215804 |
10 | 30232213123 |
11 | 11904329202 |
12 | 5a38859857 |
13 | 2b0a51a808 |
14 | 166b214547 |
15 | bbe1e7b9d |
hex | 709faf683 |
30232213123 has 4 divisors (see below), whose sum is σ = 34551100720. Its totient is φ = 25913325528.
The previous prime is 30232213097. The next prime is 30232213133. The reversal of 30232213123 is 32131223203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32131223203 = 131 ⋅245276513.
It is a cyclic number.
It is not a de Polignac number, because 30232213123 - 217 = 30232082051 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30232213094 and 30232213103.
It is not an unprimeable number, because it can be changed into a prime (30232213133) 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, 2159443788 + ... + 2159443801.
It is an arithmetic number, because the mean of its divisors is an integer number (8637775180).
Almost surely, 230232213123 is an apocalyptic number.
30232213123 is a deficient number, since it is larger than the sum of its proper divisors (4318887597).
30232213123 is an equidigital number, since it uses as much as digits as its factorization.
30232213123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4318887596.
The product of its (nonzero) digits is 1296, while the sum is 22.
Adding to 30232213123 its reverse (32131223203), we get a palindrome (62363436326).
The spelling of 30232213123 in words is "thirty billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred twenty-three".
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