The number 9427
9427 is a composite number with 4 divisors. Its prime factorisation is 11 × 857. Divisors (4): 1, 11, 857, 9427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 9427: a semiprime: 11 × 857, the product of two primes.
- 2
9427 is composite. Its prime factorisation is
- 3
The divisors add up to 10296; without 9427 itself that is 869, so 9427 is deficient (869 is less than 9427). Euler's totient φ(9427) = 8560 numbers up to 9427 share no factor with it.
- 4
The digits of 9427 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 153 steps to reach 1.
LaTeX source of the formulas on this page
\[ 9427 = 11 \times 857 \]
9427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 10296 |
| Euler totient φ(n) | 8560 |
| Square | 88868329 |
| Cube | 837761737483 |
| Square root | 97.092739 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 153 |
| Scientific notation | 9.427 × |
9427 in other forms
| Form | Value |
|---|---|
| In words | nine thousand four hundred and twenty-seven |
| Binary (base 2) | 10010011010011 |
| Octal (base 8) | 22323 |
| Hexadecimal (base 16) | 24D3 |
| Base 3 | 110221011 |
| As time | 9427 seconds = 2 h 37 min 7 s |
Is 9427 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 1) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (9427 ÷ 11 = 857) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 9427 a prime number?
No. 9427 = 11 × 857, so it is divisible by 11.
What are the factors of 9427?
1, 11, 857, 9427.
What is 9427 in binary?
10010011010011 (hexadecimal 24D3, octal 22323).
What is the square root of 9427?
About 97.0927.
Is 9427 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 9427?
9427 is a semiprime: 11 × 857, the product of two primes.