Base | Representation |
---|---|
bin | 11100000100101010… |
… | …011110101111000001 |
3 | 2212210201101212021022 |
4 | 130010222132233001 |
5 | 443213103001443 |
6 | 21503021235225 |
7 | 2114654256515 |
oct | 340452365701 |
9 | 85721355238 |
10 | 30143015873 |
11 | 11868a45a73 |
12 | 5a12a02b15 |
13 | 2ac4bba089 |
14 | 165d436145 |
15 | bb6478e68 |
hex | 704a9ebc1 |
30143015873 has 2 divisors, whose sum is σ = 30143015874. Its totient is φ = 30143015872.
The previous prime is 30143015857. The next prime is 30143015893. The reversal of 30143015873 is 37851034103.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29760735169 + 382280704 = 172513^2 + 19552^2 .
It is an emirp because it is prime and its reverse (37851034103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30143015873 - 24 = 30143015857 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (30143015813) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071507936 + 15071507937.
It is an arithmetic number, because the mean of its divisors is an integer number (15071507937).
Almost surely, 230143015873 is an apocalyptic number.
It is an amenable number.
30143015873 is a deficient number, since it is larger than the sum of its proper divisors (1).
30143015873 is an equidigital number, since it uses as much as digits as its factorization.
30143015873 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 30240, while the sum is 35.
Adding to 30143015873 its reverse (37851034103), we get a palindrome (67994049976).
The spelling of 30143015873 in words is "thirty billion, one hundred forty-three million, fifteen thousand, eight hundred seventy-three".
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