Base | Representation |
---|---|
bin | 1100010110101010010… |
… | …0010011101000101101 |
3 | 202021211110110011020101 |
4 | 3011222210103220231 |
5 | 11434132233100023 |
6 | 241300255351101 |
7 | 21222352166221 |
oct | 3055244235055 |
9 | 667743404211 |
10 | 212241300013 |
11 | 82013754076 |
12 | 35173222491 |
13 | 1702546b472 |
14 | a3b5b92781 |
15 | 57c2eab1ad |
hex | 316a913a2d |
212241300013 has 4 divisors (see below), whose sum is σ = 212269378108. Its totient is φ = 212213221920.
The previous prime is 212241299981. The next prime is 212241300017. The reversal of 212241300013 is 310003142212.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 43421390884 + 168819909129 = 208378^2 + 410877^2 .
It is a cyclic number.
It is not a de Polignac number, because 212241300013 - 25 = 212241299981 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212241300017) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14027706 + ... + 14042827.
It is an arithmetic number, because the mean of its divisors is an integer number (53067344527).
Almost surely, 2212241300013 is an apocalyptic number.
It is an amenable number.
212241300013 is a deficient number, since it is larger than the sum of its proper divisors (28078095).
212241300013 is an equidigital number, since it uses as much as digits as its factorization.
212241300013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28078094.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 212241300013 its reverse (310003142212), we get a palindrome (522244442225).
The spelling of 212241300013 in words is "two hundred twelve billion, two hundred forty-one million, three hundred thousand, thirteen".
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