Base | Representation |
---|---|
bin | 10010101000000111… |
… | …001101000111101100 |
3 | 1220121212011001020010 |
4 | 102220013031013230 |
5 | 311430041031340 |
6 | 13104340253220 |
7 | 1305425000433 |
oct | 225007150754 |
9 | 56555131203 |
10 | 20000330220 |
11 | 8533735132 |
12 | 3a620a1210 |
13 | 1b69792030 |
14 | d7a37011a |
15 | 7c0cd3b80 |
hex | 4a81cd1ec |
20000330220 has 48 divisors (see below), whose sum is σ = 60308690400. Its totient is φ = 4923158016.
The previous prime is 20000330209. The next prime is 20000330299. The reversal of 20000330220 is 2203300002.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 20000330196 and 20000330205.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12819945 + ... + 12821504.
It is an arithmetic number, because the mean of its divisors is an integer number (1256431050).
Almost surely, 220000330220 is an apocalyptic number.
20000330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20000330220 is an abundant number, since it is smaller than the sum of its proper divisors (40308360180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20000330220 is a wasteful number, since it uses less digits than its factorization.
20000330220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25641474 (or 25641472 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 12.
Adding to 20000330220 its reverse (2203300002), we get a palindrome (22203630222).
The spelling of 20000330220 in words is "twenty billion, three hundred thirty thousand, two hundred twenty".
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