Base | Representation |
---|---|
bin | 111101011010000101101 |
3 | 10210020020010 |
4 | 13223100231 |
5 | 1003342310 |
6 | 111043433 |
7 | 23050326 |
oct | 7532055 |
9 | 3706203 |
10 | 2012205 |
11 | 1154888 |
12 | 810579 |
13 | 555b70 |
14 | 3a544d |
15 | 29b320 |
hex | 1eb42d |
2012205 has 32 divisors (see below), whose sum is σ = 3677184. Its totient is φ = 930816.
The previous prime is 2012203. The next prime is 2012221. The reversal of 2012205 is 5022102.
It is not a de Polignac number, because 2012205 - 21 = 2012203 is a prime.
It is a Curzon number.
2012205 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2012203) 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, 3012 + ... + 3618.
It is an arithmetic number, because the mean of its divisors is an integer number (114912).
22012205 is an apocalyptic number.
It is an amenable number.
2012205 is a deficient number, since it is larger than the sum of its proper divisors (1664979).
2012205 is a wasteful number, since it uses less digits than its factorization.
2012205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 645.
The product of its (nonzero) digits is 40, while the sum is 12.
The square root of 2012205 is about 1418.5221182625. The cubic root of 2012205 is about 126.2478743556.
Adding to 2012205 its reverse (5022102), we get a palindrome (7034307).
The spelling of 2012205 in words is "two million, twelve thousand, two hundred five".
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