90006

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 100.at n=5A031778
• Numbers that look the same when rotated by 180 degrees, using only digits 0, 6 and 9.at n=14A111065
• Numbers that look the same when printed upside down.at n=39A111156
• Least n such that nextprime(p*n) > p*nextprime(n) where p runs through the prime numbers (if p is prime then nextprime(p)=p).at n=28A117102
• Numbers that are the same upside down (using only digits 0, 1, 6 and 9).at n=39A169731