The number 4450
4450 is a composite number with 12 divisors. Its prime factorisation is 2 × × 89. Divisors (12): 1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
4450 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
4450 is composite. Its prime factorisation is
- 3
The divisors add up to 8370; without 4450 itself that is 3920, so 4450 is deficient (3920 is less than 4450). Euler's totient φ(4450) = 1760 numbers up to 4450 share no factor with it.
- 4
The digits of 4450 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 139 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4450 = 2 \times 5^{2} \times 89 \]4450 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 8370 |
| Euler totient φ(n) | 1760 |
| Square | 19802500 |
| Cube | 88121125000 |
| Square root | 66.708320 (= 5√178) |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 139 |
| Scientific notation | 4.45 × |
4450 in other forms
| Form | Value |
|---|---|
| In words | four thousand four hundred and fifty |
| Binary (base 2) | 1000101100010 |
| Octal (base 8) | 10542 |
| Hexadecimal (base 16) | 1162 |
| Base 3 | 20002211 |
| As time | 4450 seconds = 1 h 14 min 10 s |
Is 4450 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (4450 ÷ 2 = 2225) | 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 | Yes (4450 ÷ 5 = 890) | 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 5) | 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 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (4450 ÷ 10 = 445) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | 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 4450 a prime number?
No. 4450 = 2 × × 89, so it is divisible by 2.
What are the factors of 4450?
1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450.
What is 4450 in binary?
1000101100010 (hexadecimal 1162, octal 10542).
What is the square root of 4450?
About 66.7083, exactly 5√178.
Is 4450 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 4450?
It is a composite number with 12 divisors.