Base | Representation |
---|---|
bin | 111111011001111000… |
… | …011010010100100111 |
3 | 20111201121102221210211 |
4 | 333121320122110213 |
5 | 2103411432000231 |
6 | 51135301400251 |
7 | 4630041024355 |
oct | 773170322447 |
9 | 214647387724 |
10 | 68079953191 |
11 | 269663a4528 |
12 | 1123ba09087 |
13 | 655c715293 |
14 | 341ba107d5 |
15 | 1b86c92eb1 |
hex | fd9e1a527 |
68079953191 has 2 divisors, whose sum is σ = 68079953192. Its totient is φ = 68079953190.
The previous prime is 68079953171. The next prime is 68079953237. The reversal of 68079953191 is 19135997086.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68079953191 - 27 = 68079953063 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68079953111) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34039976595 + 34039976596.
It is an arithmetic number, because the mean of its divisors is an integer number (34039976596).
Almost surely, 268079953191 is an apocalyptic number.
68079953191 is a deficient number, since it is larger than the sum of its proper divisors (1).
68079953191 is an equidigital number, since it uses as much as digits as its factorization.
68079953191 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3674160, while the sum is 58.
It can be divided in two parts, 6807995 and 3191, that added together give a palindrome (6811186).
The spelling of 68079953191 in words is "sixty-eight billion, seventy-nine million, nine hundred fifty-three thousand, one hundred ninety-one".
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