Base | Representation |
---|---|
bin | 111110111100111… |
… | …0101001110010101 |
3 | 12110012200120121200 |
4 | 1331321311032111 |
5 | 13311222442323 |
6 | 545334103113 |
7 | 103226233434 |
oct | 17571651625 |
9 | 5405616550 |
10 | 2112312213 |
11 | 994388480 |
12 | 4ab4aaa99 |
13 | 27880bcab |
14 | 16077311b |
15 | c569a443 |
hex | 7de75395 |
2112312213 has 48 divisors (see below), whose sum is σ = 3510561600. Its totient is φ = 1210429440.
The previous prime is 2112312197. The next prime is 2112312229. The reversal of 2112312213 is 3122132112.
2112312213 is a `hidden beast` number, since 211 + 231 + 221 + 3 = 666.
It is an interprime number because it is at equal distance from previous prime (2112312197) and next prime (2112312229).
It is not a de Polignac number, because 2112312213 - 24 = 2112312197 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2112312913) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1498453 + ... + 1499861.
It is an arithmetic number, because the mean of its divisors is an integer number (73136700).
Almost surely, 22112312213 is an apocalyptic number.
It is an amenable number.
2112312213 is a deficient number, since it is larger than the sum of its proper divisors (1398249387).
2112312213 is a wasteful number, since it uses less digits than its factorization.
2112312213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2242 (or 2239 counting only the distinct ones).
The product of its digits is 144, while the sum is 18.
The square root of 2112312213 is about 45959.8978784766. The cubic root of 2112312213 is about 1283.0769507214.
Adding to 2112312213 its reverse (3122132112), we get a palindrome (5234444325).
It can be divided in two parts, 211231 and 2213, that added together give a square (213444 = 4622).
The spelling of 2112312213 in words is "two billion, one hundred twelve million, three hundred twelve thousand, two hundred thirteen".
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