Base | Representation |
---|---|
bin | 1100010110100011010… |
… | …0100101010001110111 |
3 | 202021202102100011211202 |
4 | 3011220310211101313 |
5 | 11434102233342101 |
6 | 241253331523115 |
7 | 21221545224656 |
oct | 3055064452167 |
9 | 667672304752 |
10 | 212212012151 |
11 | 81aa916a727 |
12 | 3516545949b |
13 | 1701c385679 |
14 | a3b1d2b19d |
15 | 57c062336b |
hex | 3168d25477 |
212212012151 has 2 divisors, whose sum is σ = 212212012152. Its totient is φ = 212212012150.
The previous prime is 212212012099. The next prime is 212212012153. The reversal of 212212012151 is 151210212212.
212212012151 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 212212012151 - 234 = 195032142967 is a prime.
Together with 212212012153, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (212212012153) 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, 106106006075 + 106106006076.
It is an arithmetic number, because the mean of its divisors is an integer number (106106006076).
Almost surely, 2212212012151 is an apocalyptic number.
212212012151 is a deficient number, since it is larger than the sum of its proper divisors (1).
212212012151 is an equidigital number, since it uses as much as digits as its factorization.
212212012151 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 160, while the sum is 20.
Adding to 212212012151 its reverse (151210212212), we get a palindrome (363422224363).
The spelling of 212212012151 in words is "two hundred twelve billion, two hundred twelve million, twelve thousand, one hundred fifty-one".
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