Base | Representation |
---|---|
bin | 11101011011000111111… |
… | …001111101111001100000 |
3 | 21011022002212001220212000 |
4 | 131123013321331321200 |
5 | 231112013023201343 |
6 | 4144515542404000 |
7 | 266040521410254 |
oct | 35330771757140 |
9 | 7138085056760 |
10 | 2021988490848 |
11 | 70a57a876477 |
12 | 287a5ba30600 |
13 | 118898bb68c1 |
14 | 6dc16cb6264 |
15 | 378e35d5ed3 |
hex | 1d6c7e7de60 |
2021988490848 has 96 divisors (see below), whose sum is σ = 5905097704800. Its totient is φ = 673124018688.
The previous prime is 2021988490811. The next prime is 2021988490861. The reversal of 2021988490848 is 8480948891202.
2021988490848 is a `hidden beast` number, since 2 + 0 + 21 + 9 + 88 + 490 + 8 + 48 = 666.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
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, 845883 + ... + 2181626.
It is an arithmetic number, because the mean of its divisors is an integer number (61511434425).
Almost surely, 22021988490848 is an apocalyptic number.
It is an amenable number.
2021988490848 is an abundant number, since it is smaller than the sum of its proper divisors (3883109213952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2021988490848 is a wasteful number, since it uses less digits than its factorization.
2021988490848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3028301 (or 3028287 counting only the distinct ones).
The product of its (nonzero) digits is 21233664, while the sum is 63.
The spelling of 2021988490848 in words is "two trillion, twenty-one billion, nine hundred eighty-eight million, four hundred ninety thousand, eight hundred forty-eight".
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