The number 3439
3439 is a composite number with 4 divisors. Its prime factorisation is 19 × 181. Divisors (4): 1, 19, 181, 3439.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 3439: a Harshad number: divisible by its digit sum 19; a semiprime: 19 × 181, the product of two primes.
- 2
3439 is composite. Its prime factorisation is
- 3
The divisors add up to 3640; without 3439 itself that is 201, so 3439 is deficient (201 is less than 3439). Euler's totient φ(3439) = 3240 numbers up to 3439 share no factor with it.
- 4
The digits of 3439 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 149 steps to reach 1.
LaTeX source of the formulas on this page
\[ 3439 = 19 \times 181 \]
3439 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 3640 |
| Euler totient φ(n) | 3240 |
| Square | 11826721 |
| Cube | 40672093519 |
| Square root | 58.642988 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 149 |
| Scientific notation | 3.439 × |
3439 in other forms
| Form | Value |
|---|---|
| In words | three thousand four hundred and thirty-nine |
| Roman numerals | MMMCDXXXIX |
| Binary (base 2) | 110101101111 |
| Octal (base 8) | 6557 |
| Hexadecimal (base 16) | D6F |
| Base 3 | 11201101 |
| As time | 3439 seconds = 57 min 19 s |
Is 3439 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 2) | 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 1) | 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 3439 a prime number?
No. 3439 = 19 × 181, so it is divisible by 19.
What are the factors of 3439?
1, 19, 181, 3439.
What is 3439 in binary?
110101101111 (hexadecimal D6F, octal 6557).
What is the square root of 3439?
About 58.6430.
What is 3439 in Roman numerals?
MMMCDXXXIX.
Is 3439 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 3439?
3439 is a Harshad number: divisible by its digit sum 19; a semiprime: 19 × 181, the product of two primes.