Base | Representation |
---|---|
bin | 101111100110101110… |
… | …1001010011011111101 |
3 | 100202212200002011110001 |
4 | 1133031131022123331 |
5 | 3133332143101023 |
6 | 114544145514301 |
7 | 10246246022644 |
oct | 1371535123375 |
9 | 322780064401 |
10 | 102231222013 |
11 | 3a3a0950238 |
12 | 17991042991 |
13 | 9842b5335b |
14 | 4d3b50835b |
15 | 29d50726ad |
hex | 17cd74a6fd |
102231222013 has 2 divisors, whose sum is σ = 102231222014. Its totient is φ = 102231222012.
The previous prime is 102231222011. The next prime is 102231222059. The reversal of 102231222013 is 310222132201.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 98421493284 + 3809728729 = 313722^2 + 61723^2 .
It is an emirp because it is prime and its reverse (310222132201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 102231222013 - 21 = 102231222011 is a prime.
Together with 102231222011, 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 (102231222011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51115611006 + 51115611007.
It is an arithmetic number, because the mean of its divisors is an integer number (51115611007).
Almost surely, 2102231222013 is an apocalyptic number.
It is an amenable number.
102231222013 is a deficient number, since it is larger than the sum of its proper divisors (1).
102231222013 is an equidigital number, since it uses as much as digits as its factorization.
102231222013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 102231222013 its reverse (310222132201), we get a palindrome (412453354214).
The spelling of 102231222013 in words is "one hundred two billion, two hundred thirty-one million, two hundred twenty-two thousand, thirteen".
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