128547

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 45 ones.at n=32A031813
• Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.at n=30A114131
• Product of the 5th power of a prime and different distinct prime of the 2nd power (p^5*q^2).at n=27A179646