The number 27425
27425 is a composite number with 6 divisors. Its prime factorisation is Ć 1097. Divisors (6): 1, 5, 25, 1097, 5485, 27425.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
27425 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
27425 is composite. Its prime factorisation is
- 3
The divisors add up to 34038; without 27425 itself that is 6613, so 27425 is deficient (6613 is less than 27425). Euler's totient Ļ(27425) = 21920 numbers up to 27425 share no factor with it.
- 4
The digits of 27425 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 90 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27425 = 5^{2} \times 1097 \]27425 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 34038 |
| Euler totient Ļ(n) | 21920 |
| Square | 752130625 |
| Cube | 20627182390625 |
| Square root | 165.604952 (= 5ā1097) |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 90 |
| Scientific notation | 2.7425 Ć |
27425 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand four hundred and twenty-five |
| Binary (base 2) | 110101100100001 |
| Octal (base 8) | 65441 |
| Hexadecimal (base 16) | 6B21 |
| Base 3 | 1101121202 |
| As time | 27425 seconds = 7 h 37 min 5 s |
Is 27425 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 (27425 Ć· 5 = 5485) | 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 6) | 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 2) | 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 27425 a prime number?
No. 27425 = Ć 1097, so it is divisible by 5.
What are the factors of 27425?
1, 5, 25, 1097, 5485, 27425.
What is 27425 in binary?
110101100100001 (hexadecimal 6B21, octal 65441).
What is the square root of 27425?
About 165.6050, exactly 5ā1097.
Is 27425 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 27425?
It is a composite number with 6 divisors.