The number 8494
8494 is a composite number with 8 divisors. Its prime factorisation is 2 × 31 × 137. Divisors (8): 1, 2, 31, 62, 137, 274, 4247, 8494.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
8494 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
8494 is composite. Its prime factorisation is
- 3
The divisors add up to 13248; without 8494 itself that is 4754, so 8494 is deficient (4754 is less than 8494). Euler's totient φ(8494) = 4080 numbers up to 8494 share no factor with it.
- 4
The digits of 8494 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 34 steps to reach 1.
LaTeX source of the formulas on this page
\[ 8494 = 2 \times 31 \times 137 \]
8494 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 13248 |
| Euler totient φ(n) | 4080 |
| Square | 72148036 |
| Cube | 612825417784 |
| Square root | 92.162899 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 34 |
| Scientific notation | 8.494 × |
8494 in other forms
| Form | Value |
|---|---|
| In words | eight thousand four hundred and ninety-four |
| Binary (base 2) | 10000100101110 |
| Octal (base 8) | 20456 |
| Hexadecimal (base 16) | 212E |
| Base 3 | 102122121 |
| As time | 8494 seconds = 2 h 21 min 34 s |
Is 8494 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (8494 ÷ 2 = 4247) | 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 2) | 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 4) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 8494 a prime number?
No. 8494 = 2 × 31 × 137, so it is divisible by 2.
What are the factors of 8494?
1, 2, 31, 62, 137, 274, 4247, 8494.
What is 8494 in binary?
10000100101110 (hexadecimal 212E, octal 20456).
What is the square root of 8494?
About 92.1629.
Is 8494 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 8494?
It is a composite number with 8 divisors.