The number 4438
4438 is a composite number with 8 divisors. Its prime factorisation is 2 × 7 × 317. Divisors (8): 1, 2, 7, 14, 317, 634, 2219, 4438.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
4438 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
4438 is composite. Its prime factorisation is
- 3
The divisors add up to 7632; without 4438 itself that is 3194, so 4438 is deficient (3194 is less than 4438). Euler's totient φ(4438) = 1896 numbers up to 4438 share no factor with it.
- 4
The digits of 4438 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 95 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4438 = 2 \times 7 \times 317 \]
4438 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 7632 |
| Euler totient φ(n) | 1896 |
| Square | 19695844 |
| Cube | 87410155672 |
| Square root | 66.618316 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 95 |
| Scientific notation | 4.438 × |
4438 in other forms
| Form | Value |
|---|---|
| In words | four thousand four hundred and thirty-eight |
| Binary (base 2) | 1000101010110 |
| Octal (base 8) | 10526 |
| Hexadecimal (base 16) | 1156 |
| Base 3 | 20002101 |
| As time | 4438 seconds = 1 h 13 min 58 s |
Is 4438 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (4438 ÷ 2 = 2219) | 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 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | 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 | Yes (4438 ÷ 7 = 634) | 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 6) | 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 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 4438 a prime number?
No. 4438 = 2 × 7 × 317, so it is divisible by 2.
What are the factors of 4438?
1, 2, 7, 14, 317, 634, 2219, 4438.
What is 4438 in binary?
1000101010110 (hexadecimal 1156, octal 10526).
What is the square root of 4438?
About 66.6183.
Is 4438 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 4438?
It is a composite number with 8 divisors.