Base | Representation |
---|---|
bin | 11000011100101… |
… | …01001011111001 |
3 | 112021220022111221 |
4 | 30032111023321 |
5 | 410000132020 |
6 | 32203352041 |
7 | 5040115513 |
oct | 1416251371 |
9 | 467808457 |
10 | 205083385 |
11 | a5845201 |
12 | 58822621 |
13 | 33647020 |
14 | 1d346bb3 |
15 | 130106aa |
hex | c3952f9 |
205083385 has 16 divisors (see below), whose sum is σ = 266434560. Its totient is φ = 150644160.
The previous prime is 205083379. The next prime is 205083413. The reversal of 205083385 is 583380502.
It is not a de Polignac number, because 205083385 - 29 = 205082873 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 205083385.
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, 4156 + ... + 20674.
It is an arithmetic number, because the mean of its divisors is an integer number (16652160).
Almost surely, 2205083385 is an apocalyptic number.
It is an amenable number.
205083385 is a deficient number, since it is larger than the sum of its proper divisors (61351175).
205083385 is a wasteful number, since it uses less digits than its factorization.
205083385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16728.
The product of its (nonzero) digits is 28800, while the sum is 34.
The square root of 205083385 is about 14320.7326977358. The cubic root of 205083385 is about 589.7167892885.
The spelling of 205083385 in words is "two hundred five million, eighty-three thousand, three hundred eighty-five".
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