The number 4439
4439 is a composite number with 4 divisors. Its prime factorisation is 23 × 193. Divisors (4): 1, 23, 193, 4439.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 4439: a semiprime: 23 × 193, the product of two primes.
- 2
4439 is composite. Its prime factorisation is
- 3
The divisors add up to 4656; without 4439 itself that is 217, so 4439 is deficient (217 is less than 4439). Euler's totient φ(4439) = 4224 numbers up to 4439 share no factor with it.
- 4
The digits of 4439 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 95 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4439 = 23 \times 193 \]
4439 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 4656 |
| Euler totient φ(n) | 4224 |
| Square | 19704721 |
| Cube | 87469256519 |
| Square root | 66.625821 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 95 |
| Scientific notation | 4.439 × |
4439 in other forms
| Form | Value |
|---|---|
| In words | four thousand four hundred and thirty-nine |
| Binary (base 2) | 1000101010111 |
| Octal (base 8) | 10527 |
| Hexadecimal (base 16) | 1157 |
| Base 3 | 20002102 |
| As time | 4439 seconds = 1 h 13 min 59 s |
Is 4439 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 4439 a prime number?
No. 4439 = 23 × 193, so it is divisible by 23.
What are the factors of 4439?
1, 23, 193, 4439.
What is 4439 in binary?
1000101010111 (hexadecimal 1157, octal 10527).
What is the square root of 4439?
About 66.6258.
Is 4439 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 4439?
4439 is a semiprime: 23 × 193, the product of two primes.