Base | Representation |
---|---|
bin | 10110010111111111… |
… | …01101010100110001 |
3 | 1011000011110122220001 |
4 | 23023333231110301 |
5 | 144100134111121 |
6 | 5303551350001 |
7 | 603451541653 |
oct | 131377552461 |
9 | 34004418801 |
10 | 12012410161 |
11 | 5104768604 |
12 | 23b2b22301 |
13 | 11958bb40b |
14 | 81d52c6d3 |
15 | 4a48c2991 |
hex | 2cbfed531 |
12012410161 has 2 divisors, whose sum is σ = 12012410162. Its totient is φ = 12012410160.
The previous prime is 12012410159. The next prime is 12012410173. The reversal of 12012410161 is 16101421021.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6034182400 + 5978227761 = 77680^2 + 77319^2 .
It is a cyclic number.
It is not a de Polignac number, because 12012410161 - 21 = 12012410159 is a prime.
Together with 12012410159, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (12012410141) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006205080 + 6006205081.
It is an arithmetic number, because the mean of its divisors is an integer number (6006205081).
Almost surely, 212012410161 is an apocalyptic number.
It is an amenable number.
12012410161 is a deficient number, since it is larger than the sum of its proper divisors (1).
12012410161 is an equidigital number, since it uses as much as digits as its factorization.
12012410161 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 96, while the sum is 19.
Adding to 12012410161 its reverse (16101421021), we get a palindrome (28113831182).
The spelling of 12012410161 in words is "twelve billion, twelve million, four hundred ten thousand, one hundred sixty-one".
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