Base | Representation |
---|---|
bin | 10101101000100111… |
… | …111010100000101100 |
3 | 2012221221120212220100 |
4 | 111220213322200230 |
5 | 340033403131340 |
6 | 14401034151100 |
7 | 1451443564113 |
oct | 255047724054 |
9 | 65857525810 |
10 | 23230130220 |
11 | 9940891730 |
12 | 4603882490 |
13 | 22629657ab |
14 | 11a52b4c7a |
15 | 90e61b830 |
hex | 5689fa82c |
23230130220 has 72 divisors (see below), whose sum is σ = 76870619280. Its totient is φ = 5631546240.
The previous prime is 23230130219. The next prime is 23230130237. The reversal of 23230130220 is 2203103232.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 23230130193 and 23230130202.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 5864215 + ... + 5868174.
It is an arithmetic number, because the mean of its divisors is an integer number (1067647490).
Almost surely, 223230130220 is an apocalyptic number.
23230130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23230130220 is an abundant number, since it is smaller than the sum of its proper divisors (53640489060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23230130220 is a wasteful number, since it uses less digits than its factorization.
23230130220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11732415 (or 11732410 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 23230130220 its reverse (2203103232), we get a palindrome (25433233452).
The spelling of 23230130220 in words is "twenty-three billion, two hundred thirty million, one hundred thirty thousand, two hundred twenty".
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