179503

Appears in sequences

• Semiprime terms in A136047.at n=20A136048
• a(n) is the first composite number having the same base-n digits as its prime factors (with multiplicity), excluding zero digits (or 0 if no such composite number exists).at n=32A278981
• a(n) is the first composite number having the same base-(2n) digits as its prime factors (with multiplicity), excluding zero digits (or 0 if no such composite number exists).at n=16A281189
• a(n) is the smallest composite number having the same base-n digits (both type and quantity) as the primes and greater-than-one exponents in its factorization.at n=32A281335
• a(n) is the smallest composite number having the same base-n digits (both type and quantity) as its prime factors (with multiplicity).at n=32A281336