Base | Representation |
---|---|
bin | 111011110001001… |
… | …1111011001011101 |
3 | 12011202202111020111 |
4 | 1313202133121131 |
5 | 13101403431310 |
6 | 531001250021 |
7 | 100461503560 |
oct | 16742373135 |
9 | 5152674214 |
10 | 2005530205 |
11 | 93a084588 |
12 | 47b793911 |
13 | 25c662583 |
14 | 1504d84d7 |
15 | bb10628a |
hex | 7789f65d |
2005530205 has 16 divisors (see below), whose sum is σ = 2912232960. Its totient is φ = 1294324992.
The previous prime is 2005530187. The next prime is 2005530227. The reversal of 2005530205 is 5020355002.
It is a cyclic number.
It is not a de Polignac number, because 2005530205 - 211 = 2005528157 is a prime.
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, 1684725 + ... + 1685914.
It is an arithmetic number, because the mean of its divisors is an integer number (182014560).
Almost surely, 22005530205 is an apocalyptic number.
It is an amenable number.
2005530205 is a deficient number, since it is larger than the sum of its proper divisors (906702755).
2005530205 is a wasteful number, since it uses less digits than its factorization.
2005530205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3370668.
The product of its (nonzero) digits is 1500, while the sum is 22.
The square root of 2005530205 is about 44783.1464392577. The cubic root of 2005530205 is about 1261.0812514739.
Adding to 2005530205 its reverse (5020355002), we get a palindrome (7025885207).
The spelling of 2005530205 in words is "two billion, five million, five hundred thirty thousand, two hundred five".
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