Base | Representation |
---|---|
bin | 10010111110111110… |
… | …010110001110101101 |
3 | 1221121120212121101021 |
4 | 102332332112032231 |
5 | 313221233243310 |
6 | 13210401214141 |
7 | 1321063104556 |
oct | 227676261655 |
9 | 57546777337 |
10 | 20383884205 |
11 | 87101979a3 |
12 | 3b4a631351 |
13 | 1bcb095a59 |
14 | db529332d |
15 | 7e47e95da |
hex | 4bef963ad |
20383884205 has 16 divisors (see below), whose sum is σ = 25597353600. Its totient is φ = 15553378368.
The previous prime is 20383884203. The next prime is 20383884233. The reversal of 20383884205 is 50248838302.
It is a cyclic number.
It is not a de Polignac number, because 20383884205 - 21 = 20383884203 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20383884203) 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, 213807 + ... + 294076.
It is an arithmetic number, because the mean of its divisors is an integer number (1599834600).
Almost surely, 220383884205 is an apocalyptic number.
It is an amenable number.
20383884205 is a deficient number, since it is larger than the sum of its proper divisors (5213469395).
20383884205 is a wasteful number, since it uses less digits than its factorization.
20383884205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 508260.
The product of its (nonzero) digits is 368640, while the sum is 43.
The spelling of 20383884205 in words is "twenty billion, three hundred eighty-three million, eight hundred eighty-four thousand, two hundred five".
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