The number 25994
25994 is a composite number with 8 divisors. Its prime factorisation is 2 × 41 × 317. Divisors (8): 1, 2, 41, 82, 317, 634, 12997, 25994.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
25994 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
25994 is composite. Its prime factorisation is
- 3
The divisors add up to 40068; without 25994 itself that is 14074, so 25994 is deficient (14074 is less than 25994). Euler's totient φ(25994) = 12640 numbers up to 25994 share no factor with it.
- 4
The digits of 25994 add up to 29, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 139 steps to reach 1.
LaTeX source of the formulas on this page
\[ 25994 = 2 \times 41 \times 317 \]
25994 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 40068 |
| Euler totient φ(n) | 12640 |
| Square | 675688036 |
| Cube | 17563834807784 |
| Square root | 161.226549 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 139 |
| Scientific notation | 2.5994 × |
25994 in other forms
| Form | Value |
|---|---|
| In words | twenty-five thousand nine hundred and ninety-four |
| Binary (base 2) | 110010110001010 |
| Octal (base 8) | 62612 |
| Hexadecimal (base 16) | 658A |
| Base 3 | 1022122202 |
| As time | 25994 seconds = 7 h 13 min 14 s |
Is 25994 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (25994 ÷ 2 = 12997) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 25994 a prime number?
No. 25994 = 2 × 41 × 317, so it is divisible by 2.
What are the factors of 25994?
1, 2, 41, 82, 317, 634, 12997, 25994.
What is 25994 in binary?
110010110001010 (hexadecimal 658A, octal 62612).
What is the square root of 25994?
About 161.2265.
Is 25994 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 25994?
It is a composite number with 8 divisors.