The number 3487
3487 is a composite number with 4 divisors. Its prime factorisation is 11 × 317. Divisors (4): 1, 11, 317, 3487.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 3487: a semiprime: 11 × 317, the product of two primes.
- 2
3487 is composite. Its prime factorisation is
- 3
The divisors add up to 3816; without 3487 itself that is 329, so 3487 is deficient (329 is less than 3487). Euler's totient φ(3487) = 3160 numbers up to 3487 share no factor with it.
- 4
The digits of 3487 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 131 steps to reach 1.
LaTeX source of the formulas on this page
\[ 3487 = 11 \times 317 \]
3487 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 3816 |
| Euler totient φ(n) | 3160 |
| Square | 12159169 |
| Cube | 42399022303 |
| Square root | 59.050826 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 131 |
| Scientific notation | 3.487 × |
3487 in other forms
| Form | Value |
|---|---|
| In words | three thousand four hundred and eighty-seven |
| Roman numerals | MMMCDLXXXVII |
| Binary (base 2) | 110110011111 |
| Octal (base 8) | 6637 |
| Hexadecimal (base 16) | D9F |
| Base 3 | 11210011 |
| As time | 3487 seconds = 58 min 7 s |
Is 3487 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 2) | 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 1) | 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 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (3487 ÷ 11 = 317) | 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 3487 a prime number?
No. 3487 = 11 × 317, so it is divisible by 11.
What are the factors of 3487?
1, 11, 317, 3487.
What is 3487 in binary?
110110011111 (hexadecimal D9F, octal 6637).
What is the square root of 3487?
About 59.0508.
What is 3487 in Roman numerals?
MMMCDLXXXVII.
Is 3487 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 3487?
3487 is a semiprime: 11 × 317, the product of two primes.