Base | Representation |
---|---|
bin | 111111011011100… |
… | …0110010111010101 |
3 | 12111022220120011020 |
4 | 1332313012113111 |
5 | 13324330420310 |
6 | 551110231353 |
7 | 103512605460 |
oct | 17667062725 |
9 | 5438816136 |
10 | 2128373205 |
11 | 9a2458322 |
12 | 4b4955559 |
13 | 27bc4353a |
14 | 1629542d7 |
15 | c6cbe170 |
hex | 7edc65d5 |
2128373205 has 32 divisors (see below), whose sum is σ = 3965324544. Its totient is φ = 954610176.
The previous prime is 2128373189. The next prime is 2128373209. The reversal of 2128373205 is 5023738212.
It is not a de Polignac number, because 2128373205 - 24 = 2128373189 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2128373209) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185664 + ... + 196793.
It is an arithmetic number, because the mean of its divisors is an integer number (123916392).
Almost surely, 22128373205 is an apocalyptic number.
It is an amenable number.
2128373205 is a deficient number, since it is larger than the sum of its proper divisors (1836951339).
2128373205 is a wasteful number, since it uses less digits than its factorization.
2128373205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 382525.
The product of its (nonzero) digits is 20160, while the sum is 33.
The square root of 2128373205 is about 46134.2953235443. The cubic root of 2128373205 is about 1286.3207070602.
The spelling of 2128373205 in words is "two billion, one hundred twenty-eight million, three hundred seventy-three thousand, two hundred five".
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