The number 87482
87482 is a composite number with 16 divisors. Its prime factorisation is 2 × 17 × 31 × 83. Divisors (16): 1, 2, 17, 31, 34, 62, 83, 166, 527, 1054, 1411, 2573, 2822, 5146, 43741, 87482.
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How to work it out
- 1
87482 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
87482 is composite. Its prime factorisation is
- 3
The divisors add up to 145152; without 87482 itself that is 57670, so 87482 is deficient (57670 is less than 87482). Euler's totient φ(87482) = 39360 numbers up to 87482 share no factor with it.
- 4
The digits of 87482 add up to 29, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 120 steps to reach 1.
LaTeX source of the formulas on this page
\[ 87482 = 2 \times 17 \times 31 \times 83 \]
87482 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 145152 |
| Euler totient φ(n) | 39360 |
| Square | 7653100324 |
| Cube | 669508522544168 |
| Square root | 295.773562 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 120 |
| Scientific notation | 8.7482 × |
87482 in other forms
| Form | Value |
|---|---|
| In words | eighty-seven thousand four hundred and eighty-two |
| Binary (base 2) | 10101010110111010 |
| Octal (base 8) | 252672 |
| Hexadecimal (base 16) | 155BA |
| Base 3 | 11110000002 |
| As time | 87482 seconds = 24 h 18 min 2 s |
Is 87482 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (87482 ÷ 2 = 43741) | 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 2) | 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 2) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 87482 a prime number?
No. 87482 = 2 × 17 × 31 × 83, so it is divisible by 2.
What are the factors of 87482?
1, 2, 17, 31, 34, 62, 83, 166, 527, 1054, 1411, 2573, 2822, 5146, 43741, 87482.
What is 87482 in binary?
10101010110111010 (hexadecimal 155BA, octal 252672).
What is the square root of 87482?
About 295.7736.
Is 87482 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 87482?
It is a composite number with 16 divisors.