The number 67739
67739 is a composite number with 4 divisors. Its prime factorisation is 7 × 9677. Divisors (4): 1, 7, 9677, 67739.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 67739: a semiprime: 7 × 9677, the product of two primes.
- 2
67739 is composite. Its prime factorisation is
- 3
The divisors add up to 77424; without 67739 itself that is 9685, so 67739 is deficient (9685 is less than 67739). Euler's totient φ(67739) = 58056 numbers up to 67739 share no factor with it.
- 4
The digits of 67739 add up to 32, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 112 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67739 = 7 \times 9677 \]
67739 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 77424 |
| Euler totient φ(n) | 58056 |
| Square | 4588572121 |
| Cube | 310825286904419 |
| Square root | 260.267170 |
| Digit sum / digital root | 32 / 5 |
| Collatz steps to 1 | 112 |
| Scientific notation | 6.7739 × |
67739 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand seven hundred and thirty-nine |
| Binary (base 2) | 10000100010011011 |
| Octal (base 8) | 204233 |
| Hexadecimal (base 16) | 1089B |
| Base 3 | 10102220212 |
| As time | 67739 seconds = 18 h 48 min 59 s |
Is 67739 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 | Yes (67739 ÷ 7 = 9677) | 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 5) | 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 1) | 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 67739 a prime number?
No. 67739 = 7 × 9677, so it is divisible by 7.
What are the factors of 67739?
1, 7, 9677, 67739.
What is 67739 in binary?
10000100010011011 (hexadecimal 1089B, octal 204233).
What is the square root of 67739?
About 260.2672.
Is 67739 divisible by 3?
No. Its digits add up to 32, which is not a multiple of 3.
What is special about the number 67739?
67739 is a semiprime: 7 × 9677, the product of two primes.