Base | Representation |
---|---|
bin | 10011010111111111… |
… | …111101111001000000 |
3 | 1222200211220110011021 |
4 | 103113333331321000 |
5 | 320101224123300 |
6 | 13320200155224 |
7 | 1334351602606 |
oct | 232777757100 |
9 | 58624813137 |
10 | 20803739200 |
11 | 89061941a2 |
12 | 4047168b14 |
13 | 1c6706976a |
14 | 1014d45876 |
15 | 81b5d0d1a |
hex | 4d7ffde40 |
20803739200 has 84 divisors (see below), whose sum is σ = 53415956160. Its totient is φ = 7959677440.
The previous prime is 20803739161. The next prime is 20803739219. The reversal of 20803739200 is 293730802.
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, 245860 + ... + 319459.
It is an arithmetic number, because the mean of its divisors is an integer number (635904240).
Almost surely, 220803739200 is an apocalyptic number.
20803739200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20803739200 is an abundant number, since it is smaller than the sum of its proper divisors (32612216960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20803739200 is a wasteful number, since it uses less digits than its factorization.
20803739200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 565364 (or 565349 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 34.
The spelling of 20803739200 in words is "twenty billion, eight hundred three million, seven hundred thirty-nine thousand, two hundred".
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