Base | Representation |
---|---|
bin | 111101011010000110011 |
3 | 10210020020100 |
4 | 13223100303 |
5 | 1003342321 |
6 | 111043443 |
7 | 23050335 |
oct | 7532063 |
9 | 3706210 |
10 | 2012211 |
11 | 1154893 |
12 | 810583 |
13 | 555b76 |
14 | 3a5455 |
15 | 29b326 |
hex | 1eb433 |
2012211 has 24 divisors (see below), whose sum is σ = 3055104. Its totient is φ = 1275120.
The previous prime is 2012203. The next prime is 2012221. The reversal of 2012211 is 1122102.
It is not a de Polignac number, because 2012211 - 23 = 2012203 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is an Ulam number.
2012211 is a modest number, since divided by 2211 gives 201 as remainder.
2012211 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 2012193 and 2012202.
It is not an unprimeable number, because it can be changed into a prime (2012221) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28306 + ... + 28376.
It is an arithmetic number, because the mean of its divisors is an integer number (127296).
22012211 is an apocalyptic number.
2012211 is a deficient number, since it is larger than the sum of its proper divisors (1042893).
2012211 is a wasteful number, since it uses less digits than its factorization.
2012211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 191 (or 188 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 2012211 is about 1418.5242331381. The cubic root of 2012211 is about 126.2479998376.
Adding to 2012211 its reverse (1122102), we get a palindrome (3134313).
The spelling of 2012211 in words is "two million, twelve thousand, two hundred eleven".
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