Base | Representation |
---|---|
bin | 1100010110100001011… |
… | …0000110010111010111 |
3 | 202021201212022012022212 |
4 | 3011220112012113113 |
5 | 11434043212134312 |
6 | 241252444344035 |
7 | 21221420263523 |
oct | 3055026062727 |
9 | 667655265285 |
10 | 212204021207 |
11 | 81aa4701a42 |
12 | 3516284501b |
13 | 1701a8183b9 |
14 | a3b0c4ad83 |
15 | 57bea95822 |
hex | 31685865d7 |
212204021207 has 2 divisors, whose sum is σ = 212204021208. Its totient is φ = 212204021206.
The previous prime is 212204021179. The next prime is 212204021219. The reversal of 212204021207 is 702120402212.
212204021207 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 212204021207 - 224 = 212187243991 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (212204021257) 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, 106102010603 + 106102010604.
It is an arithmetic number, because the mean of its divisors is an integer number (106102010604).
Almost surely, 2212204021207 is an apocalyptic number.
212204021207 is a deficient number, since it is larger than the sum of its proper divisors (1).
212204021207 is an equidigital number, since it uses as much as digits as its factorization.
212204021207 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 896, while the sum is 23.
Adding to 212204021207 its reverse (702120402212), we get a palindrome (914324423419).
The spelling of 212204021207 in words is "two hundred twelve billion, two hundred four million, twenty-one thousand, two hundred seven".
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