The number 5487
5487 is a composite number with 8 divisors. Its prime factorisation is 3 × 31 × 59. Divisors (8): 1, 3, 31, 59, 93, 177, 1829, 5487.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
5487 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
5487 is composite. Its prime factorisation is
- 3
The divisors add up to 7680; without 5487 itself that is 2193, so 5487 is deficient (2193 is less than 5487). Euler's totient φ(5487) = 3480 numbers up to 5487 share no factor with it.
- 4
The digits of 5487 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 54 steps to reach 1.
LaTeX source of the formulas on this page
\[ 5487 = 3 \times 31 \times 59 \]
5487 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 7680 |
| Euler totient φ(n) | 3480 |
| Square | 30107169 |
| Cube | 165198036303 |
| Square root | 74.074287 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 54 |
| Scientific notation | 5.487 × |
5487 in other forms
| Form | Value |
|---|---|
| In words | five thousand four hundred and eighty-seven |
| Binary (base 2) | 1010101101111 |
| Octal (base 8) | 12557 |
| Hexadecimal (base 16) | 156F |
| Base 3 | 21112020 |
| As time | 5487 seconds = 1 h 31 min 27 s |
Is 5487 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 (5487 ÷ 3 = 1829) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 6) | 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 | 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 5487 a prime number?
No. 5487 = 3 × 31 × 59, so it is divisible by 3.
What are the factors of 5487?
1, 3, 31, 59, 93, 177, 1829, 5487.
What is 5487 in binary?
1010101101111 (hexadecimal 156F, octal 12557).
What is the square root of 5487?
About 74.0743.
Is 5487 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 5487?
It is a composite number with 8 divisors.