Base | Representation |
---|---|
bin | 1100010110001111110… |
… | …0111010100000111001 |
3 | 202021112201121021211121 |
4 | 3011203330322200321 |
5 | 11433420324411301 |
6 | 241241252425241 |
7 | 21216533612605 |
oct | 3054374724071 |
9 | 667481537747 |
10 | 212130310201 |
11 | 81a67036857 |
12 | 35142018221 |
13 | 1700847a714 |
14 | a3a5140505 |
15 | 57b83853a1 |
hex | 3163f3a839 |
212130310201 has 8 divisors (see below), whose sum is σ = 214301368008. Its totient is φ = 209960640000.
The previous prime is 212130310187. The next prime is 212130310213. The reversal of 212130310201 is 102013031212.
It can be written as a sum of positive squares in 4 ways, for example, as 205006106176 + 7124204025 = 452776^2 + 84405^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 212130310201 - 25 = 212130310169 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212130310001) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38190 + ... + 652471.
It is an arithmetic number, because the mean of its divisors is an integer number (26787671001).
Almost surely, 2212130310201 is an apocalyptic number.
It is an amenable number.
212130310201 is a deficient number, since it is larger than the sum of its proper divisors (2171057807).
212130310201 is a wasteful number, since it uses less digits than its factorization.
212130310201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 693803.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 212130310201 its reverse (102013031212), we get a palindrome (314143341413).
The spelling of 212130310201 in words is "two hundred twelve billion, one hundred thirty million, three hundred ten thousand, two hundred one".
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