The number 36425
36425 is a composite number with 12 divisors. Its prime factorisation is × 31 × 47. Divisors (12): 1, 5, 25, 31, 47, 155, 235, 775, 1175, 1457, 7285, 36425.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
36425 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
36425 is composite. Its prime factorisation is
- 3
The divisors add up to 47616; without 36425 itself that is 11191, so 36425 is deficient (11191 is less than 36425). Euler's totient φ(36425) = 27600 numbers up to 36425 share no factor with it.
- 4
The digits of 36425 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 186 steps to reach 1.
LaTeX source of the formulas on this page
\[ 36425 = 5^{2} \times 31 \times 47 \]36425 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 47616 |
| Euler totient φ(n) | 27600 |
| Square | 1326780625 |
| Cube | 48327984265625 |
| Square root | 190.853347 (= 5√1457) |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 186 |
| Scientific notation | 3.6425 × |
36425 in other forms
| Form | Value |
|---|---|
| In words | thirty-six thousand four hundred and twenty-five |
| Binary (base 2) | 1000111001001001 |
| Octal (base 8) | 107111 |
| Hexadecimal (base 16) | 8E49 |
| Base 3 | 1211222002 |
| As time | 36425 seconds = 10 h 7 min 5 s |
Is 36425 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 | No (remainder 2) | 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 (36425 ÷ 5 = 7285) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 2) | 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 4) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 36425 a prime number?
No. 36425 = × 31 × 47, so it is divisible by 5.
What are the factors of 36425?
1, 5, 25, 31, 47, 155, 235, 775, 1175, 1457, 7285, 36425.
What is 36425 in binary?
1000111001001001 (hexadecimal 8E49, octal 107111).
What is the square root of 36425?
About 190.8533, exactly 5√1457.
Is 36425 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 36425?
It is a composite number with 12 divisors.