Base | Representation |
---|---|
bin | 111111001111100… |
… | …1101010010011111 |
3 | 12110220010100210210 |
4 | 1332133031102133 |
5 | 13321230010421 |
6 | 550324103503 |
7 | 103405431642 |
oct | 17637152237 |
9 | 5426110723 |
10 | 2122110111 |
11 | 99996a810 |
12 | 4b2834b93 |
13 | 27a85c874 |
14 | 161ba3a59 |
15 | c6483576 |
hex | 7e7cd49f |
2122110111 has 32 divisors (see below), whose sum is σ = 3228346368. Its totient is φ = 1227369440.
The previous prime is 2122110083. The next prime is 2122110121. The reversal of 2122110111 is 1110112212.
It is not a de Polignac number, because 2122110111 - 25 = 2122110079 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2122110121) 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, 351460 + ... + 357446.
It is an arithmetic number, because the mean of its divisors is an integer number (100885824).
Almost surely, 22122110111 is an apocalyptic number.
2122110111 is a deficient number, since it is larger than the sum of its proper divisors (1106236257).
2122110111 is a wasteful number, since it uses less digits than its factorization.
2122110111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6491.
The product of its (nonzero) digits is 8, while the sum is 12.
The square root of 2122110111 is about 46066.3663750463. The cubic root of 2122110111 is about 1285.0577294942.
Adding to 2122110111 its reverse (1110112212), we get a palindrome (3232222323).
The spelling of 2122110111 in words is "two billion, one hundred twenty-two million, one hundred ten thousand, one hundred eleven".
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