Base | Representation |
---|---|
bin | 1100010101110011111… |
… | …0010010100010000101 |
3 | 202021020120022000021202 |
4 | 3011130332102202011 |
5 | 11433200341331323 |
6 | 241221511152245 |
7 | 21213612502541 |
oct | 3053476224205 |
9 | 667216260252 |
10 | 212013230213 |
11 | 81a06a39934 |
12 | 3510a975685 |
13 | 16cba136915 |
14 | a393784a21 |
15 | 57ace59d28 |
hex | 315cf92885 |
212013230213 has 16 divisors (see below), whose sum is σ = 222291717120. Its totient is φ = 201825427584.
The previous prime is 212013230207. The next prime is 212013230243. The reversal of 212013230213 is 312032310212.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-212013230213 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 (212013230243) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4083545 + ... + 4135137.
It is an arithmetic number, because the mean of its divisors is an integer number (13893232320).
Almost surely, 2212013230213 is an apocalyptic number.
212013230213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
212013230213 is a deficient number, since it is larger than the sum of its proper divisors (10278486907).
212013230213 is a wasteful number, since it uses less digits than its factorization.
212013230213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52468.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 212013230213 its reverse (312032310212), we get a palindrome (524045540425).
The spelling of 212013230213 in words is "two hundred twelve billion, thirteen million, two hundred thirty thousand, two hundred thirteen".
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