Base | Representation |
---|---|
bin | 1100010110001000111… |
… | …0010100110111000010 |
3 | 202021110201001102221021 |
4 | 3011202032110313002 |
5 | 11433340414221010 |
6 | 241234335220054 |
7 | 21216032321500 |
oct | 3054216246702 |
9 | 667421042837 |
10 | 212101320130 |
11 | 81a51736117 |
12 | 3513437762a |
13 | 1700246a32b |
14 | a3a1355670 |
15 | 57b5a5a8da |
hex | 3162394dc2 |
212101320130 has 48 divisors (see below), whose sum is σ = 454946289336. Its totient is φ = 70946776320.
The previous prime is 212101320083. The next prime is 212101320191. The reversal of 212101320130 is 31023101212.
212101320130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 38413256049 + 173688064081 = 195993^2 + 416759^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5258689 + ... + 5298868.
Almost surely, 2212101320130 is an apocalyptic number.
212101320130 is an abundant number, since it is smaller than the sum of its proper divisors (242844969206).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212101320130 is a wasteful number, since it uses less digits than its factorization.
212101320130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10557619 (or 10557612 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 212101320130 its reverse (31023101212), we get a palindrome (243124421342).
The spelling of 212101320130 in words is "two hundred twelve billion, one hundred one million, three hundred twenty thousand, one hundred thirty".
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