Base | Representation |
---|---|
bin | 111111001111100… |
… | …1010110111110011 |
3 | 12110220002212020010 |
4 | 1332133022313303 |
5 | 13321224201321 |
6 | 550323550003 |
7 | 103405361040 |
oct | 17637126763 |
9 | 5426085203 |
10 | 2122100211 |
11 | 999963330 |
12 | 4b282b303 |
13 | 27a8581ca |
14 | 161ba01c7 |
15 | c6480676 |
hex | 7e7cadf3 |
2122100211 has 32 divisors (see below), whose sum is σ = 3537100800. Its totient is φ = 1099435680.
The previous prime is 2122100203. The next prime is 2122100251. The reversal of 2122100211 is 1120012212.
It is not a de Polignac number, because 2122100211 - 23 = 2122100203 is a prime.
It is a nialpdrome in base 11.
It is not an unprimeable number, because it can be changed into a prime (2122100251) 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, 75430 + ... + 99668.
It is an arithmetic number, because the mean of its divisors is an integer number (110534400).
Almost surely, 22122100211 is an apocalyptic number.
2122100211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2122100211 is a deficient number, since it is larger than the sum of its proper divisors (1415000589).
2122100211 is a wasteful number, since it uses less digits than its factorization.
2122100211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24639.
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 2122100211 is about 46066.2589212539. The cubic root of 2122100211 is about 1285.0557311544.
Adding to 2122100211 its reverse (1120012212), we get a palindrome (3242112423).
The spelling of 2122100211 in words is "two billion, one hundred twenty-two million, one hundred thousand, two hundred eleven".
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