The number 52425
52425 is a palindrome: it reads 52425 backwards too. Its prime factorisation is × × 233. Divisors (18): 1, 3, 5, 9, 15, 25, 45, 75, 225, 233, 699, 1165, 2097, 3495, 5825, 10485 … 52425.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 52425: a palindrome: it reads 52425 backwards too.
- 2
52425 is composite. Its prime factorisation is
- 3
The divisors add up to 94302; without 52425 itself that is 41877, so 52425 is deficient (41877 is less than 52425). Euler's totient φ(52425) = 27840 numbers up to 52425 share no factor with it.
- 4
The digits of 52425 add up to 18, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 52 steps to reach 1.
LaTeX source of the formulas on this page
\[ 52425 = 3^{2} \times 5^{2} \times 233 \]52425 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 18 |
| Sum of divisors | 94302 |
| Euler totient φ(n) | 27840 |
| Square | 2748380625 |
| Cube | 144083854265625 |
| Square root | 228.965063 (= 15√233) |
| Digit sum / digital root | 18 / 9 |
| Collatz steps to 1 | 52 |
| Scientific notation | 5.2425 × |
52425 in other forms
| Form | Value |
|---|---|
| In words | fifty-two thousand four hundred and twenty-five |
| Binary (base 2) | 1100110011001001 |
| Octal (base 8) | 146311 |
| Hexadecimal (base 16) | CCC9 |
| Base 3 | 2122220200 |
| As time | 52425 seconds = 14 h 33 min 45 s |
Is 52425 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 (52425 ÷ 3 = 17475) | 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 (52425 ÷ 5 = 10485) | 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 2) | 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 | Yes (52425 ÷ 9 = 5825) | 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 10) | 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 52425 a prime number?
No. 52425 = × × 233, so it is divisible by 3.
What are the factors of 52425?
1, 3, 5, 9, 15, 25, 45, 75, 225, 233, 699, 1165, 2097, 3495, 5825, 10485, 17475, 52425.
What is 52425 in binary?
1100110011001001 (hexadecimal CCC9, octal 146311).
What is the square root of 52425?
About 228.9651, exactly 15√233.
Is 52425 divisible by 3?
Yes. Its digits add up to 18, a multiple of 3.
What is special about the number 52425?
52425 is a palindrome: it reads 52425 backwards too.