Base | Representation |
---|---|
bin | 1100010101110011001… |
… | …0110110010110101101 |
3 | 202021020100122122102200 |
4 | 3011130302312112231 |
5 | 11433144104344323 |
6 | 241221323012113 |
7 | 21213545142234 |
oct | 3053462662655 |
9 | 667210578380 |
10 | 212010231213 |
11 | 81a05280720 |
12 | 3510996a039 |
13 | 16cb9626871 |
14 | a393203b1b |
15 | 57aca66443 |
hex | 315ccb65ad |
212010231213 has 48 divisors (see below), whose sum is σ = 343606466112. Its totient is φ = 124835904000.
The previous prime is 212010231211. The next prime is 212010231217. The reversal of 212010231213 is 312132010212.
212010231213 is a `hidden beast` number, since 21 + 201 + 0 + 231 + 213 = 666.
It is not a de Polignac number, because 212010231213 - 21 = 212010231211 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212010231211) 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, 2489253 + ... + 2573013.
It is an arithmetic number, because the mean of its divisors is an integer number (7158468044).
Almost surely, 2212010231213 is an apocalyptic number.
It is an amenable number.
212010231213 is a deficient number, since it is larger than the sum of its proper divisors (131596234899).
212010231213 is a wasteful number, since it uses less digits than its factorization.
212010231213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84506 (or 84503 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 212010231213 its reverse (312132010212), we get a palindrome (524142241425).
The spelling of 212010231213 in words is "two hundred twelve billion, ten million, two hundred thirty-one thousand, two hundred thirteen".
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