Base | Representation |
---|---|
bin | 1100010110001101110… |
… | …1010010100010100111 |
3 | 202021112011000002211101 |
4 | 3011203131102202213 |
5 | 11433411214120012 |
6 | 241240355020531 |
7 | 21216403264132 |
oct | 3054335224247 |
9 | 667464002741 |
10 | 212122020007 |
11 | 81a62394257 |
12 | 3513b29a747 |
13 | 17006837191 |
14 | a3a3dc3219 |
15 | 57b7798d57 |
hex | 31637528a7 |
212122020007 has 2 divisors, whose sum is σ = 212122020008. Its totient is φ = 212122020006.
The previous prime is 212122019981. The next prime is 212122020013. The reversal of 212122020007 is 700020221212.
212122020007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 212122020007 - 223 = 212113631399 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (212122020107) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106061010003 + 106061010004.
It is an arithmetic number, because the mean of its divisors is an integer number (106061010004).
Almost surely, 2212122020007 is an apocalyptic number.
212122020007 is a deficient number, since it is larger than the sum of its proper divisors (1).
212122020007 is an equidigital number, since it uses as much as digits as its factorization.
212122020007 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 224, while the sum is 19.
Adding to 212122020007 its reverse (700020221212), we get a palindrome (912142241219).
The spelling of 212122020007 in words is "two hundred twelve billion, one hundred twenty-two million, twenty thousand, seven".
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