Base | Representation |
---|---|
bin | 1100010110001011011… |
… | …1001011110111100001 |
3 | 202021111110012121202121 |
4 | 3011202313023313201 |
5 | 11433401134444301 |
6 | 241235400544241 |
7 | 21216222342220 |
oct | 3054267136741 |
9 | 667443177677 |
10 | 212112031201 |
11 | 81a57791544 |
12 | 35137a82081 |
13 | 1700474a745 |
14 | a3a2942cb7 |
15 | 57b69743a1 |
hex | 3162dcbde1 |
212112031201 has 4 divisors (see below), whose sum is σ = 242413749952. Its totient is φ = 181810312452.
The previous prime is 212112031177. The next prime is 212112031213. The reversal of 212112031201 is 102130211212.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 212112031201 - 25 = 212112031169 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212112031231) 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, 15150859365 + ... + 15150859378.
It is an arithmetic number, because the mean of its divisors is an integer number (60603437488).
Almost surely, 2212112031201 is an apocalyptic number.
It is an amenable number.
212112031201 is a deficient number, since it is larger than the sum of its proper divisors (30301718751).
212112031201 is an equidigital number, since it uses as much as digits as its factorization.
212112031201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30301718750.
The product of its (nonzero) digits is 48, while the sum is 16.
Adding to 212112031201 its reverse (102130211212), we get a palindrome (314242242413).
The spelling of 212112031201 in words is "two hundred twelve billion, one hundred twelve million, thirty-one thousand, two hundred one".
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