The number 339
339 is a composite number with 4 divisors. Its prime factorisation is 3 × 113. Divisors (4): 1, 3, 113, 339.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 339: a semiprime: 3 × 113, the product of two primes.
- 2
339 is composite. Its prime factorisation is
- 3
The divisors add up to 456; without 339 itself that is 117, so 339 is deficient (117 is less than 339). Euler's totient φ(339) = 224 numbers up to 339 share no factor with it.
- 4
The digits of 339 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 50 steps to reach 1.
LaTeX source of the formulas on this page
\[ 339 = 3 \times 113 \]
339 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 456 |
| Euler totient φ(n) | 224 |
| Square | 114921 |
| Cube | 38958219 |
| Square root | 18.411953 |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 50 |
| Scientific notation | 3.39 × |
339 in other forms
| Form | Value |
|---|---|
| In words | three hundred and thirty-nine |
| Roman numerals | CCCXXXIX |
| Binary (base 2) | 101010011 |
| Octal (base 8) | 523 |
| Hexadecimal (base 16) | 153 |
| Base 3 | 110120 |
| As time | 339 seconds = 5 min 39 s |
Is 339 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 | Yes (339 ÷ 3 = 113) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 6) | 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 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 339 a prime number?
No. 339 = 3 × 113, so it is divisible by 3.
What are the factors of 339?
1, 3, 113, 339.
What is 339 in binary?
101010011 (hexadecimal 153, octal 523).
What is the square root of 339?
About 18.4120.
What is 339 in Roman numerals?
CCCXXXIX.
Is 339 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 339?
339 is a semiprime: 3 × 113, the product of two primes.