Base | Representation |
---|---|
bin | 100000000101000000… |
… | …0101010110010001111 |
3 | 20120210212211201201101 |
4 | 1000022000222302033 |
5 | 2112040140033033 |
6 | 51351344323531 |
7 | 4656044305156 |
oct | 1001200526217 |
9 | 216725751641 |
10 | 68887424143 |
11 | 2724017839a |
12 | 114263135a7 |
13 | 665aab2845 |
14 | 3496d6259d |
15 | 1bd2ae397d |
hex | 100a02ac8f |
68887424143 has 2 divisors, whose sum is σ = 68887424144. Its totient is φ = 68887424142.
The previous prime is 68887424141. The next prime is 68887424149. The reversal of 68887424143 is 34142478886.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68887424143 - 21 = 68887424141 is a prime.
Together with 68887424141, 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 (68887424141) 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, 34443712071 + 34443712072.
It is an arithmetic number, because the mean of its divisors is an integer number (34443712072).
Almost surely, 268887424143 is an apocalyptic number.
68887424143 is a deficient number, since it is larger than the sum of its proper divisors (1).
68887424143 is an equidigital number, since it uses as much as digits as its factorization.
68887424143 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 8257536, while the sum is 55.
The spelling of 68887424143 in words is "sixty-eight billion, eight hundred eighty-seven million, four hundred twenty-four thousand, one hundred forty-three".
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