The number 9679
9679 is a twin prime (9677 and 9679 are both prime) and the 1195th prime number. Its only divisors are 1 and 9679.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 9679: a twin prime (9677 and 9679 are both prime); the 1195th prime number.
- 2
9679 is prime, so its only factors are 1 and 9679. It is the 1195th prime; the next prime is 9689 and the one before is 9677.
- 3
The divisors add up to 9680; without 9679 itself that is 1, so 9679 is deficient (1 is less than 9679). Euler's totient φ(9679) = 9678 numbers up to 9679 share no factor with it.
- 4
The digits of 9679 add up to 31, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 166 steps to reach 1.
9679 at a glance
| Property | Value |
|---|---|
| Type | prime |
| Number of divisors | 2 |
| Sum of divisors | 9680 |
| Euler totient φ(n) | 9678 |
| Square | 93683041 |
| Cube | 906758153839 |
| Square root | 98.381909 |
| Digit sum / digital root | 31 / 4 |
| Collatz steps to 1 | 166 |
| Scientific notation | 9.679 × |
9679 in other forms
| Form | Value |
|---|---|
| In words | nine thousand six hundred and seventy-nine |
| Binary (base 2) | 10010111001111 |
| Octal (base 8) | 22717 |
| Hexadecimal (base 16) | 25CF |
| Base 3 | 111021111 |
| As time | 9679 seconds = 2 h 41 min 19 s |
Is 9679 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 4) | 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 7) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | 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 9679 a prime number?
Yes. 9679 is divisible only by 1 and itself.
What are the factors of 9679?
1, 9679.
What is 9679 in binary?
10010111001111 (hexadecimal 25CF, octal 22717).
What is the square root of 9679?
About 98.3819.
Is 9679 divisible by 3?
No. Its digits add up to 31, which is not a multiple of 3.
What is special about the number 9679?
9679 is a twin prime (9677 and 9679 are both prime); the 1195th prime number.