Abundant Numbers
Abundant Numbers (Long)
Catalan Numbers
13th
Christmas Trees
120th
Divisors
1st
Emirp Numbers
1,689th5th
Evil Numbers
157th
Fibonacci
Happy Numbers
Leap Years
3,037th
Niven Numbers
Niven Numbers (Long)
Odious Numbers
Pernicious Numbers
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
246th