99 Bottles of Beer
648
Divisors
677873
Emirp Numbers
697
Evil Numbers
634551
Fibonacci
676598
Fizz Buzz
640726
Happy Numbers
447
Leap Years
790750
Niven Numbers
597463
Odious Numbers
629548
Pascal’s Triangle
405698
Pernicious Numbers
612
Prime Numbers
449726
Roman to Arabic
451
Rule 110
459
Spelling Numbers
623
√2
199