1000 (number)
natural number
1000 (1,000, one thousand or thousand for short) is the natural number after 999 and before 1001. One thousand thousands is known as a million.
| ||||
|---|---|---|---|---|
| Cardinal | one thousand | |||
| Ordinal | 1000th (one thousandth) | |||
| Factorization | 23× 53 | |||
| Greek numeral | ,Α´ | |||
| Roman numeral | M | |||
| Binary | 11111010002 | |||
| Ternary | 11010013 | |||
| Quaternary | 332204 | |||
| Quinary | 130005 | |||
| Senary | 43446 | |||
| Octal | 17508 | |||
| Duodecimal | 6B412 | |||
| Hexadecimal | 3E816 | |||
| Vigesimal | 2A020 | |||
| Base 36 | RS36 | |||
In Roman numerals, 1000 is written as M.
Examples of a thousand change
- The number of grams in a kilogram
- The number of millimeters in a meter
- The number of years in a millennium
