Base | Representation |
---|---|
bin | 111111011110101… |
… | …1000111010000100 |
3 | 12111110000022220110 |
4 | 1332331120322010 |
5 | 13330241201040 |
6 | 551205433020 |
7 | 103532613510 |
oct | 17675307204 |
9 | 5443008813 |
10 | 2130022020 |
11 | 9a3384085 |
12 | 4b540b770 |
13 | 27c39cb79 |
14 | 162c63140 |
15 | c6ee7980 |
hex | 7ef58e84 |
2130022020 has 48 divisors (see below), whose sum is σ = 6816071808. Its totient is φ = 486862080.
The previous prime is 2130022007. The next prime is 2130022043. The reversal of 2130022020 is 202200312.
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 = 2130021987 and 2130022005.
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, 2535321 + ... + 2536160.
It is an arithmetic number, because the mean of its divisors is an integer number (142001496).
Almost surely, 22130022020 is an apocalyptic number.
2130022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2130022020 is an abundant number, since it is smaller than the sum of its proper divisors (4686049788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130022020 is a wasteful number, since it uses less digits than its factorization.
2130022020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5071500 (or 5071498 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 2130022020 is about 46152.1615961810. The cubic root of 2130022020 is about 1286.6527850108.
Adding to 2130022020 its reverse (202200312), we get a palindrome (2332222332).
The spelling of 2130022020 in words is "two billion, one hundred thirty million, twenty-two thousand, twenty".
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