The number 9442
9442 is a composite number with 4 divisors. Its prime factorisation is 2 × 4721. Divisors (4): 1, 2, 4721, 9442.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 9442: a semiprime: 2 × 4721, the product of two primes.
- 2
9442 is composite. Its prime factorisation is
- 3
The divisors add up to 14166; without 9442 itself that is 4724, so 9442 is deficient (4724 is less than 9442). Euler's totient φ(9442) = 4720 numbers up to 9442 share no factor with it.
- 4
The digits of 9442 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 122 steps to reach 1.
LaTeX source of the formulas on this page
\[ 9442 = 2 \times 4721 \]
9442 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 14166 |
| Euler totient φ(n) | 4720 |
| Square | 89151364 |
| Cube | 841767178888 |
| Square root | 97.169954 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 122 |
| Scientific notation | 9.442 × |
9442 in other forms
| Form | Value |
|---|---|
| In words | nine thousand four hundred and forty-two |
| Binary (base 2) | 10010011100010 |
| Octal (base 8) | 22342 |
| Hexadecimal (base 16) | 24E2 |
| Base 3 | 110221201 |
| As time | 9442 seconds = 2 h 37 min 22 s |
Is 9442 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (9442 ÷ 2 = 4721) | 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 2) | 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 2) | 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 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 9442 a prime number?
No. 9442 = 2 × 4721, so it is divisible by 2.
What are the factors of 9442?
1, 2, 4721, 9442.
What is 9442 in binary?
10010011100010 (hexadecimal 24E2, octal 22342).
What is the square root of 9442?
About 97.1700.
Is 9442 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 9442?
9442 is a semiprime: 2 × 4721, the product of two primes.