The number 4490
4490 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 449. Divisors (8): 1, 2, 5, 10, 449, 898, 2245, 4490.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
4490 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
4490 is composite. Its prime factorisation is
- 3
The divisors add up to 8100; without 4490 itself that is 3610, so 4490 is deficient (3610 is less than 4490). Euler's totient φ(4490) = 1792 numbers up to 4490 share no factor with it.
- 4
The digits of 4490 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 46 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4490 = 2 \times 5 \times 449 \]
4490 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 8100 |
| Euler totient φ(n) | 1792 |
| Square | 20160100 |
| Cube | 90518849000 |
| Square root | 67.007462 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 46 |
| Scientific notation | 4.49 × |
4490 in other forms
| Form | Value |
|---|---|
| In words | four thousand four hundred and ninety |
| Binary (base 2) | 1000110001010 |
| Octal (base 8) | 10612 |
| Hexadecimal (base 16) | 118A |
| Base 3 | 20011022 |
| As time | 4490 seconds = 1 h 14 min 50 s |
Is 4490 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (4490 ÷ 2 = 2245) | 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 | Yes (4490 ÷ 5 = 898) | 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 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (4490 ÷ 10 = 449) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 4490 a prime number?
No. 4490 = 2 × 5 × 449, so it is divisible by 2.
What are the factors of 4490?
1, 2, 5, 10, 449, 898, 2245, 4490.
What is 4490 in binary?
1000110001010 (hexadecimal 118A, octal 10612).
What is the square root of 4490?
About 67.0075.
Is 4490 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 4490?
It is a composite number with 8 divisors.