Base | Representation |
---|---|
bin | 10101101110101001… |
… | …011101110011011100 |
3 | 2020012222202202212200 |
4 | 111232221131303130 |
5 | 340240241401340 |
6 | 14415044331500 |
7 | 1454111633616 |
oct | 255651356334 |
9 | 66188682780 |
10 | 23331200220 |
11 | 9992944059 |
12 | 46316a3b90 |
13 | 227a892323 |
14 | 11b48a3db6 |
15 | 918433330 |
hex | 56ea5dcdc |
23331200220 has 36 divisors (see below), whose sum is σ = 70771307880. Its totient is φ = 6221653344.
The previous prime is 23331200219. The next prime is 23331200237. The reversal of 23331200220 is 2200213332.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
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 = 23331200193 and 23331200202.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64808710 + ... + 64809069.
Almost surely, 223331200220 is an apocalyptic number.
23331200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23331200220 is an abundant number, since it is smaller than the sum of its proper divisors (47440107660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23331200220 is a wasteful number, since it uses less digits than its factorization.
23331200220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 129617794 (or 129617789 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 23331200220 its reverse (2200213332), we get a palindrome (25531413552).
The spelling of 23331200220 in words is "twenty-three billion, three hundred thirty-one million, two hundred thousand, two hundred twenty".
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