2109375

Appears in sequences

• Numbers of the form p^7*q^3 where p and q are distinct primes.at n=12A179705
• (16^(5^n) + (10^n)/2 - 1) mod 10^n: a sequence of trimorphic numbers ending (for n > 1) in 5.at n=6A224478
• Number of set partitions of [n] such that i-j is a multiple of seven for all i,j belonging to the same block.at n=24A275074
• Numbers n such that the product of proper divisors of n ends with n and n is not a multiplicatively perfect number (A007422).at n=38A278474
• Numbers that decrease two times in succession when they are iteratively replaced by the "Look and Say" description (cf. A045918) of their prime factors, counted with multiplicity.at n=14A379455