The number 4425
4425 is a composite number with 12 divisors. Its prime factorisation is 3 × × 59. Divisors (12): 1, 3, 5, 15, 25, 59, 75, 177, 295, 885, 1475, 4425.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 4425: a Harshad number: divisible by its digit sum 15.
- 2
4425 is composite. Its prime factorisation is
- 3
The divisors add up to 7440; without 4425 itself that is 3015, so 4425 is deficient (3015 is less than 4425). Euler's totient φ(4425) = 2320 numbers up to 4425 share no factor with it.
- 4
The digits of 4425 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 46 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4425 = 3 \times 5^{2} \times 59 \]4425 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 7440 |
| Euler totient φ(n) | 2320 |
| Square | 19580625 |
| Cube | 86644265625 |
| Square root | 66.520673 (= 5√177) |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 46 |
| Scientific notation | 4.425 × |
4425 in other forms
| Form | Value |
|---|---|
| In words | four thousand four hundred and twenty-five |
| Binary (base 2) | 1000101001001 |
| Octal (base 8) | 10511 |
| Hexadecimal (base 16) | 1149 |
| Base 3 | 20001220 |
| As time | 4425 seconds = 1 h 13 min 45 s |
Is 4425 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 (4425 ÷ 3 = 1475) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (4425 ÷ 5 = 885) | 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 1) | 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 1) | 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 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 4425 a prime number?
No. 4425 = 3 × × 59, so it is divisible by 3.
What are the factors of 4425?
1, 3, 5, 15, 25, 59, 75, 177, 295, 885, 1475, 4425.
What is 4425 in binary?
1000101001001 (hexadecimal 1149, octal 10511).
What is the square root of 4425?
About 66.5207, exactly 5√177.
Is 4425 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 4425?
4425 is a Harshad number: divisible by its digit sum 15.