The number 3425
3425 is a composite number with 6 divisors. Its prime factorisation is Ć 137. Divisors (6): 1, 5, 25, 137, 685, 3425.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
3425 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
3425 is composite. Its prime factorisation is
- 3
The divisors add up to 4278; without 3425 itself that is 853, so 3425 is deficient (853 is less than 3425). Euler's totient Ļ(3425) = 2720 numbers up to 3425 share no factor with it.
- 4
The digits of 3425 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 56 steps to reach 1.
LaTeX source of the formulas on this page
\[ 3425 = 5^{2} \times 137 \]3425 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 4278 |
| Euler totient Ļ(n) | 2720 |
| Square | 11730625 |
| Cube | 40177390625 |
| Square root | 58.523500 (= 5ā137) |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 56 |
| Scientific notation | 3.425 Ć |
3425 in other forms
| Form | Value |
|---|---|
| In words | three thousand four hundred and twenty-five |
| Roman numerals | MMMCDXXV |
| Binary (base 2) | 110101100001 |
| Octal (base 8) | 6541 |
| Hexadecimal (base 16) | D61 |
| Base 3 | 11200212 |
| As time | 3425 seconds = 57 min 5 s |
Is 3425 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (3425 Ć· 5 = 685) | 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 | 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 1) | 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 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 3425 a prime number?
No. 3425 = Ć 137, so it is divisible by 5.
What are the factors of 3425?
1, 5, 25, 137, 685, 3425.
What is 3425 in binary?
110101100001 (hexadecimal D61, octal 6541).
What is the square root of 3425?
About 58.5235, exactly 5ā137.
What is 3425 in Roman numerals?
MMMCDXXV.
Is 3425 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 3425?
It is a composite number with 6 divisors.