The number 244
244 is a composite number with 6 divisors. Its prime factorisation is × 61. Divisors (6): 1, 2, 4, 61, 122, 244.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
244 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
244 is composite. Its prime factorisation is
- 3
The divisors add up to 434; without 244 itself that is 190, so 244 is deficient (190 is less than 244). Euler's totient φ(244) = 120 numbers up to 244 share no factor with it.
- 4
The digits of 244 add up to 10, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 21 steps to reach 1.
LaTeX source of the formulas on this page
\[ 244 = 2^{2} \times 61 \]244 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 434 |
| Euler totient φ(n) | 120 |
| Square | 59536 |
| Cube | 14526784 |
| Square root | 15.620499 (= 2√61) |
| Digit sum / digital root | 10 / 1 |
| Collatz steps to 1 | 21 |
| Scientific notation | 2.44 × |
244 in other forms
| Form | Value |
|---|---|
| In words | two hundred and forty-four |
| Roman numerals | CCXLIV |
| Binary (base 2) | 11110100 |
| Octal (base 8) | 364 |
| Hexadecimal (base 16) | F4 |
| Base 3 | 100001 |
| As time | 244 seconds = 4 min 4 s |
Is 244 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (244 ÷ 2 = 122) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | Yes (244 ÷ 4 = 61) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 4) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 244 a prime number?
No. 244 = × 61, so it is divisible by 2.
What are the factors of 244?
1, 2, 4, 61, 122, 244.
What is 244 in binary?
11110100 (hexadecimal F4, octal 364).
What is the square root of 244?
About 15.6205, exactly 2√61.
What is 244 in Roman numerals?
CCXLIV.
Is 244 divisible by 3?
No. Its digits add up to 10, which is not a multiple of 3.
What is special about the number 244?
It is a composite number with 6 divisors.