Abundant Numbers
253rd
Abundant Numbers (Long)
262nd
Catalan Numbers
12th
Christmas Trees
449th
Divisors
1st
Emirp Numbers
1,653rd244th
Evil Numbers
153rd
Fibonacci
Happy Numbers
471st
Leap Years
2,914th
Niven Numbers
1,198th
Niven Numbers (Long)
429th
Odious Numbers
115th
Pernicious Numbers
98th
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
241st