Base | Representation |
---|---|
bin | 111100001101110… |
… | …1000010011011001 |
3 | 12012210221111010120 |
4 | 1320123220103121 |
5 | 13114222241024 |
6 | 532254303453 |
7 | 101033020320 |
oct | 17033502331 |
9 | 5183844116 |
10 | 2020508889 |
11 | 947585263 |
12 | 4847b7b89 |
13 | 2627a82b9 |
14 | 1524b70b7 |
15 | bc5b4479 |
hex | 786e84d9 |
2020508889 has 16 divisors (see below), whose sum is σ = 3094348800. Its totient is φ = 1148772240.
The previous prime is 2020508881. The next prime is 2020508929. The reversal of 2020508889 is 9888050202.
It is not a de Polignac number, because 2020508889 - 23 = 2020508881 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 2020508889.
It is not an unprimeable number, because it can be changed into a prime (2020508881) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237567 + ... + 245924.
It is an arithmetic number, because the mean of its divisors is an integer number (193396800).
Almost surely, 22020508889 is an apocalyptic number.
It is an amenable number.
2020508889 is a deficient number, since it is larger than the sum of its proper divisors (1073839911).
2020508889 is a wasteful number, since it uses less digits than its factorization.
2020508889 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 483700.
The product of its (nonzero) digits is 92160, while the sum is 42.
The square root of 2020508889 is about 44950.0710677970. The cubic root of 2020508889 is about 1264.2130094285.
The spelling of 2020508889 in words is "two billion, twenty million, five hundred eight thousand, eight hundred eighty-nine".
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