Base | Representation |
---|---|
bin | 1000010001011100… |
… | …1111111000100110 |
3 | 12201202121120201110 |
4 | 2010113033320212 |
5 | 14021443440021 |
6 | 1004205005450 |
7 | 106013345535 |
oct | 20427177046 |
9 | 5652546643 |
10 | 2220686886 |
11 | a3a579a20 |
12 | 51b853886 |
13 | 2950c5612 |
14 | 170d0431c |
15 | cee56476 |
hex | 845cfe26 |
2220686886 has 16 divisors (see below), whose sum is σ = 4845135168. Its totient is φ = 672935400.
The previous prime is 2220686873. The next prime is 2220686917. The reversal of 2220686886 is 6886860222.
2220686886 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a congruent number.
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, 16823320 + ... + 16823451.
It is an arithmetic number, because the mean of its divisors is an integer number (302820948).
Almost surely, 22220686886 is an apocalyptic number.
2220686886 is an abundant number, since it is smaller than the sum of its proper divisors (2624448282).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2220686886 is a wasteful number, since it uses less digits than its factorization.
2220686886 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33646787.
The product of its (nonzero) digits is 884736, while the sum is 48.
The square root of 2220686886 is about 47124.1645655390. The cubic root of 2220686886 is about 1304.6552792457.
The spelling of 2220686886 in words is "two billion, two hundred twenty million, six hundred eighty-six thousand, eight hundred eighty-six".
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