Base | Representation |
---|---|
bin | 11001001101001… |
… | …10000111110100 |
3 | 112201212110221010 |
4 | 30212212013310 |
5 | 413112203322 |
6 | 32551552220 |
7 | 5145150300 |
oct | 1446460764 |
9 | 481773833 |
10 | 211444212 |
11 | a939a191 |
12 | 5a98b670 |
13 | 34a63325 |
14 | 20120d00 |
15 | 1386a20c |
hex | c9a61f4 |
211444212 has 36 divisors (see below), whose sum is σ = 573921600. Its totient is φ = 60412464.
The previous prime is 211444183. The next prime is 211444223. The reversal of 211444212 is 212444112.
211444212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179212 + ... + 180387.
Almost surely, 2211444212 is an apocalyptic number.
It is an amenable number.
211444212 is an abundant number, since it is smaller than the sum of its proper divisors (362477388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211444212 is a wasteful number, since it uses less digits than its factorization.
211444212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 359620 (or 359611 counting only the distinct ones).
The product of its digits is 512, while the sum is 21.
The square root of 211444212 is about 14541.1214148015. The cubic root of 211444212 is about 595.7516682354.
Adding to 211444212 its reverse (212444112), we get a palindrome (423888324).
The spelling of 211444212 in words is "two hundred eleven million, four hundred forty-four thousand, two hundred twelve".
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