13333339

Properties

Appears in sequences

• Geometric mean of digits = 3 and digits are in nondecreasing order.at n=22A069516
• a(n) is the smallest (n+2)-digit prime consisting of a string of n identical digits d sandwiched between two digits different from d, or -1 if no such prime exists.at n=6A384979
• Prime numbersat n=869513