Base | Representation |
---|---|
bin | 1000001000111… |
… | …10100010110101 |
3 | 11202111010001022 |
4 | 10010132202311 |
5 | 114440020144 |
6 | 10435310525 |
7 | 1456251326 |
oct | 404364265 |
9 | 152433038 |
10 | 68282549 |
11 | 355a8765 |
12 | 1aa4b445 |
13 | 111b9b9a |
14 | 90d644d |
15 | 5edbcee |
hex | 411e8b5 |
68282549 has 2 divisors, whose sum is σ = 68282550. Its totient is φ = 68282548.
The previous prime is 68282537. The next prime is 68282551. The reversal of 68282549 is 94528286.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 49420900 + 18861649 = 7030^2 + 4343^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68282549 is a prime.
Together with 68282551, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68282579) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34141274 + 34141275.
It is an arithmetic number, because the mean of its divisors is an integer number (34141275).
Almost surely, 268282549 is an apocalyptic number.
It is an amenable number.
68282549 is a deficient number, since it is larger than the sum of its proper divisors (1).
68282549 is an equidigital number, since it uses as much as digits as its factorization.
68282549 is an evil number, because the sum of its binary digits is even.
The product of its digits is 276480, while the sum is 44.
The square root of 68282549 is about 8263.3255412092. The cubic root of 68282549 is about 408.7300562300.
The spelling of 68282549 in words is "sixty-eight million, two hundred eighty-two thousand, five hundred forty-nine".
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