Base | Representation |
---|---|
bin | 1100010110010000011… |
… | …1010010111000101111 |
3 | 202021112220201112201101 |
4 | 3011210013102320233 |
5 | 11433422024001341 |
6 | 241241431023531 |
7 | 21216566005414 |
oct | 3054407227057 |
9 | 667486645641 |
10 | 212133031471 |
11 | 81a68625339 |
12 | 35142b0aba7 |
13 | 17008bc123a |
14 | a3a564c10b |
15 | 57b8721831 |
hex | 31641d2e2f |
212133031471 has 2 divisors, whose sum is σ = 212133031472. Its totient is φ = 212133031470.
The previous prime is 212133031469. The next prime is 212133031507. The reversal of 212133031471 is 174130331212.
212133031471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 212133031471 - 21 = 212133031469 is a prime.
It is a super-3 number, since 3×2121330314713 (a number of 35 digits) contains 333 as substring.
Together with 212133031469, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (212133031441) 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, 106066515735 + 106066515736.
It is an arithmetic number, because the mean of its divisors is an integer number (106066515736).
Almost surely, 2212133031471 is an apocalyptic number.
212133031471 is a deficient number, since it is larger than the sum of its proper divisors (1).
212133031471 is an equidigital number, since it uses as much as digits as its factorization.
212133031471 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3024, while the sum is 28.
Adding to 212133031471 its reverse (174130331212), we get a palindrome (386263362683).
The spelling of 212133031471 in words is "two hundred twelve billion, one hundred thirty-three million, thirty-one thousand, four hundred seventy-one".
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