Base | Representation |
---|---|
bin | 10010101001001110… |
… | …011101101001001000 |
3 | 1220200011022002020021 |
4 | 102221032131221020 |
5 | 311444331310440 |
6 | 13110244510224 |
7 | 1306042530664 |
oct | 225116355110 |
9 | 56604262207 |
10 | 20019010120 |
11 | 854323366a |
12 | 3a683ab374 |
13 | 1b70602625 |
14 | d7ca338a4 |
15 | 7c277384a |
hex | 4a939da48 |
20019010120 has 32 divisors (see below), whose sum is σ = 46495768320. Its totient is φ = 7749293760.
The previous prime is 20019010111. The next prime is 20019010201. The reversal of 20019010120 is 2101091002.
It is a junction number, because it is equal to n+sod(n) for n = 20019010094 and 20019010103.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8070942 + ... + 8073421.
It is an arithmetic number, because the mean of its divisors is an integer number (1452992760).
Almost surely, 220019010120 is an apocalyptic number.
20019010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20019010120 is an abundant number, since it is smaller than the sum of its proper divisors (26476758200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20019010120 is a wasteful number, since it uses less digits than its factorization.
20019010120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16144405 (or 16144401 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 16.
The spelling of 20019010120 in words is "twenty billion, nineteen million, ten thousand, one hundred twenty".
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