228 (two hundred [and] twenty-eight) is the natural number following 227 and preceding 229.
| ||||
---|---|---|---|---|
Cardinal | two hundred twenty-eight | |||
Ordinal | 228th (two hundred twenty-eighth) | |||
Factorization | 22 × 3 × 19 | |||
Prime | no | |||
Greek numeral | ΣΚΗ´ | |||
Roman numeral | CCXXVIII | |||
Binary | 111001002 | |||
Ternary | 221103 | |||
Senary | 10206 | |||
Octal | 3448 | |||
Duodecimal | 17012 | |||
Hexadecimal | E416 |
228 is a refactorable number [1] and a practical number. [2] There are 228 matchings in a ladder graph with five rungs. [3] 228 is the smallest even number n such that the numerator of the nth Bernoulli number is divisible by a nontrivial square number that is relatively prime to n. [4]
The binary form of 228 contains all the two digit binary numbers in sequence from highest to lowest (11 10 01 00).
2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and only even prime number. Because it forms the basis of a duality, it has religious and spiritual significance in many cultures.
24 (twenty-four) is the natural number following 23 and preceding 25.
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.
360 is the natural number following 359 and preceding 361.
400 is the natural number following 399 and preceding 401.
180 is the natural number following 179 and preceding 181.
500 is the natural number following 499 and preceding 501.
600 is the natural number following 599 and preceding 601.
2000 is a natural number following 1999 and preceding 2001.
One million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. The word is derived from the early Italian millione, from mille, "thousand", plus the augmentative suffix -one.
1,000,000,000 is the natural number following 999,999,999 and preceding 1,000,000,001. With a number, "billion" can be abbreviated as b, bil or bn.
100,000 (one hundred thousand) is the natural number following 99,999 and preceding 100,001. In scientific notation, it is written as 105.
138 is the natural number following 137 and preceding 139.
225 is the natural number following 224 and preceding 226.
100,000,000 is the natural number following 99,999,999 and preceding 100,000,001.
277 is the natural number following 276 and preceding 278.
232 is the natural number following 231 and preceding 233.
252 is the natural number following 251 and preceding 253.
20,000 is the natural number that comes after 19,999 and before 20,001.