The number 4442
4442 is a composite number with 4 divisors. Its prime factorisation is 2 × 2221. Divisors (4): 1, 2, 2221, 4442.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 4442: a semiprime: 2 × 2221, the product of two primes.
- 2
4442 is composite. Its prime factorisation is
- 3
The divisors add up to 6666; without 4442 itself that is 2224, so 4442 is deficient (2224 is less than 4442). Euler's totient φ(4442) = 2220 numbers up to 4442 share no factor with it.
- 4
The digits of 4442 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 33 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4442 = 2 \times 2221 \]
4442 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 6666 |
| Euler totient φ(n) | 2220 |
| Square | 19731364 |
| Cube | 87646718888 |
| Square root | 66.648331 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 33 |
| Scientific notation | 4.442 × |
4442 in other forms
| Form | Value |
|---|---|
| In words | four thousand four hundred and forty-two |
| Binary (base 2) | 1000101011010 |
| Octal (base 8) | 10532 |
| Hexadecimal (base 16) | 115A |
| Base 3 | 20002112 |
| As time | 4442 seconds = 1 h 14 min 2 s |
Is 4442 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (4442 ÷ 2 = 2221) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 4442 a prime number?
No. 4442 = 2 × 2221, so it is divisible by 2.
What are the factors of 4442?
1, 2, 2221, 4442.
What is 4442 in binary?
1000101011010 (hexadecimal 115A, octal 10532).
What is the square root of 4442?
About 66.6483.
Is 4442 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 4442?
4442 is a semiprime: 2 × 2221, the product of two primes.