Base | Representation |
---|---|
bin | 10010111011111100… |
… | …010110101010000100 |
3 | 1221111001011221112221 |
4 | 102323330112222010 |
5 | 313120223430040 |
6 | 13201343222124 |
7 | 1316604621622 |
oct | 227374265204 |
9 | 57431157487 |
10 | 20333030020 |
11 | 8694513446 |
12 | 3b355a7944 |
13 | 1bc069b914 |
14 | dac616512 |
15 | 7e010174a |
hex | 4bbf16a84 |
20333030020 has 48 divisors (see below), whose sum is σ = 44258860800. Its totient is φ = 7841332224.
The previous prime is 20333030017. The next prime is 20333030059. The reversal of 20333030020 is 2003033302.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 20333029976 and 20333030003.
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, 98445 + ... + 224404.
It is an arithmetic number, because the mean of its divisors is an integer number (922059600).
Almost surely, 220333030020 is an apocalyptic number.
20333030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20333030020 is an abundant number, since it is smaller than the sum of its proper divisors (23925830780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20333030020 is a wasteful number, since it uses less digits than its factorization.
20333030020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 322972 (or 322970 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 16.
Adding to 20333030020 its reverse (2003033302), we get a palindrome (22336063322).
The spelling of 20333030020 in words is "twenty billion, three hundred thirty-three million, thirty thousand, twenty".
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