List of numbers - Integers100000 1000000 10000000 Cardinal One million Ordinal One millionth Roman numeral Factorization 26 · 56 Binary 11110100001001000000 Hexadecimal F4240 One million (1,000,000) or one thousand thousand,'s the natural number following 999,999 and preceding 1,000,001. The name's derived from Italian, where mille was 1,000, and 1,000,000 became milione, "a large thousand". In scientific notation, it's written as or just 106. Physical quantities can also… (More on Million)