| ||||
|---|---|---|---|---|
| Cardinal | one thousand | |||
| Ordinal | 1000th (one thousandth) | |||
| Factorization | 23 × 53 | |||
| Divisors | 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000 | |||
| Greek numeral | ,Α´ | |||
| Roman numeral | M | |||
| Roman numeral (unicode) | M, m, ↀ | |||
| Unicode symbol(s) | ↀ | |||
| Greek prefix | chilia | |||
| Latin prefix | milli | |||
| Binary | 11111010002 | |||
| Ternary | 11010013 | |||
| Senary | 43446 | |||
| Octal | 17508 | |||
| Duodecimal | 6B412 | |||
| Hexadecimal | 3E816 | |||
| Tamil | ௲ | |||
| Chinese | 千 | |||
| Punjabi | ੧੦੦੦ | |||
| Devanagari | १००० | |||
| Armenian | Ռ | |||
| Egyptian hieroglyph | 𓆼 | |||
1000 or one thousand is the natural number following 999 and preceding 1001. In most English-speaking countries, it can be written with or without a comma or sometimes a period separating the thousands digit: 1,000.
A group of one thousand things is sometimes known, from Ancient Greek, as a chiliad.[1] A period of one thousand years may be known as a chiliad or, more often from Latin, as a millennium. The number 1000 is also sometimes described as a short thousand in medieval contexts where it is necessary to distinguish the Germanic concept of 1200 as a long thousand. It is the first 4-digit integer.
- ^ "chiliad". Merriam-Webster. Archived from the original on 25 March 2022.