Base | Representation |
---|---|
bin | 1000000111111… |
… | …00011100100011 |
3 | 11202020000110111 |
4 | 10003330130203 |
5 | 114421033013 |
6 | 10432312151 |
7 | 1455130204 |
oct | 403743443 |
9 | 152200414 |
10 | 68142883 |
11 | 35512836 |
12 | 1a9a2657 |
13 | 1116b443 |
14 | 909b5ab |
15 | 5eb073d |
hex | 40fc723 |
68142883 has 2 divisors, whose sum is σ = 68142884. Its totient is φ = 68142882.
The previous prime is 68142881. The next prime is 68142901. The reversal of 68142883 is 38824186.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68142883 - 21 = 68142881 is a prime.
Together with 68142881, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (68142881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34071441 + 34071442.
It is an arithmetic number, because the mean of its divisors is an integer number (34071442).
Almost surely, 268142883 is an apocalyptic number.
68142883 is a deficient number, since it is larger than the sum of its proper divisors (1).
68142883 is an equidigital number, since it uses as much as digits as its factorization.
68142883 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 73728, while the sum is 40.
The square root of 68142883 is about 8254.8702594287. The cubic root of 68142883 is about 408.4511921160.
The spelling of 68142883 in words is "sixty-eight million, one hundred forty-two thousand, eight hundred eighty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •