Base | Representation |
---|---|
bin | 11001001011011… |
… | …01011101010000 |
3 | 112201102200112211 |
4 | 30211231131100 |
5 | 413032241422 |
6 | 32543001504 |
7 | 5143162516 |
oct | 1445553520 |
9 | 481380484 |
10 | 211212112 |
11 | a9250871 |
12 | 5a899294 |
13 | 349b17a7 |
14 | 200a04b6 |
15 | 13821577 |
hex | c96d750 |
211212112 has 20 divisors (see below), whose sum is σ = 409800160. Its totient is φ = 105457248.
The previous prime is 211212101. The next prime is 211212121.
211212112 is nontrivially palindromic in base 10.
211212112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2112121122 = 89221112511001088, which contains 22 as substring.
It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 211212092 and 211212101.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2893 + ... + 20755.
It is an arithmetic number, because the mean of its divisors is an integer number (20490008).
Almost surely, 2211212112 is an apocalyptic number.
It is an amenable number.
211212112 is a deficient number, since it is larger than the sum of its proper divisors (198588048).
211212112 is a wasteful number, since it uses less digits than its factorization.
211212112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18610 (or 18604 counting only the distinct ones).
The product of its digits is 16, while the sum is 13.
The square root of 211212112 is about 14533.1384084787. The cubic root of 211212112 is about 595.5336050629.
The spelling of 211212112 in words is "two hundred eleven million, two hundred twelve thousand, one hundred twelve".
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