800 (eight hundred) is the natural number following 799 and preceding 801.
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List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 → |
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| Cardinal | 800 eight hundred |
| Ordinal | 800th eight hundredth |
| Factorization | |
| Roman numeral | DCCC |
| Roman numeral (Unicode) | DCCC, dccc |
| Binary | 1100100000 |
| Octal | 1440 |
| Duodecimal | 568 |
| Hexadecimal | 320 |
It is the sum of four consecutive primes (193 + 197 + 199 + 211). It is a Harshad number.