| ||||
|---|---|---|---|---|
| Cardinal | two hundred sixty-three | |||
| Ordinal | 263rd (two hundred sixty-third) | |||
| Factorization | prime | |||
| Prime | yes | |||
| Greek numeral | ΣΞΓ´ | |||
| Roman numeral | CCLXIII | |||
| Binary | 1000001112 | |||
| Ternary | 1002023 | |||
| Senary | 11156 | |||
| Octal | 4078 | |||
| Duodecimal | 19B12 | |||
| Hexadecimal | 10716 | |||
263 is the natural number between 262 and 264. It is also a prime number.
263 is a balanced prime, [1] an irregular prime, [2] a Ramanujan prime, [3] a Chen prime, [4] and a safe prime. [5]
It is also a strictly non-palindromic number and a happy number. [6]
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.
300 is the natural number following 299 and preceding 301.
400 is the natural number following 399 and preceding 401.
500 is the natural number following 499 and preceding 501.
700 is the natural number following 699 and preceding 701.
600 is the natural number following 599 and preceding 601.
800 is the natural number following 799 and preceding 801.
900 is the natural number following 899 and preceding 901. It is the square of 30 and the sum of Euler's totient function for the first 54 positive integers. In base 10 it is a Harshad number. It is also the first number to be the square of a sphenic number.
2000 is a natural number following 1999 and preceding 2001.
260 is the natural number following 259 and preceding 261.
3000 is the natural number following 2999 and preceding 3001. It is the smallest number requiring thirteen letters in English.
4000 is the natural number following 3999 and preceding 4001. It is a decagonal number.
5000 is the natural number following 4999 and preceding 5001. Five thousand is the largest isogrammic numeral in the English language.
6000 is the natural number following 5999 and preceding 6001.
7000 is the natural number following 6999 and preceding 7001.
227 is the natural number between 226 and 228. It is also a prime number.
233 is the natural number following 232 and preceding 234.
257 is the natural number following 256 and preceding 258.
269 is the natural number between 268 and 270. It is also a prime number.
353 is the natural number following 352 and preceding 354. It is a prime number.