The number 6739
6739 is a composite number with 4 divisors. Its prime factorisation is 23 × 293. Divisors (4): 1, 23, 293, 6739.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 6739: a semiprime: 23 × 293, the product of two primes.
- 2
6739 is composite. Its prime factorisation is
- 3
The divisors add up to 7056; without 6739 itself that is 317, so 6739 is deficient (317 is less than 6739). Euler's totient φ(6739) = 6424 numbers up to 6739 share no factor with it.
- 4
The digits of 6739 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 181 steps to reach 1.
LaTeX source of the formulas on this page
\[ 6739 = 23 \times 293 \]
6739 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 7056 |
| Euler totient φ(n) | 6424 |
| Square | 45414121 |
| Cube | 306045761419 |
| Square root | 82.091412 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 181 |
| Scientific notation | 6.739 × |
6739 in other forms
| Form | Value |
|---|---|
| In words | six thousand seven hundred and thirty-nine |
| Binary (base 2) | 1101001010011 |
| Octal (base 8) | 15123 |
| Hexadecimal (base 16) | 1A53 |
| Base 3 | 100020121 |
| As time | 6739 seconds = 1 h 52 min 19 s |
Is 6739 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | 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 7) | 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 6739 a prime number?
No. 6739 = 23 × 293, so it is divisible by 23.
What are the factors of 6739?
1, 23, 293, 6739.
What is 6739 in binary?
1101001010011 (hexadecimal 1A53, octal 15123).
What is the square root of 6739?
About 82.0914.
Is 6739 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 6739?
6739 is a semiprime: 23 × 293, the product of two primes.