The number 25049
25049 is a composite number with 4 divisors. Its prime factorisation is 37 × 677. Divisors (4): 1, 37, 677, 25049.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 25049: a semiprime: 37 × 677, the product of two primes.
- 2
25049 is composite. Its prime factorisation is
- 3
The divisors add up to 25764; without 25049 itself that is 715, so 25049 is deficient (715 is less than 25049). Euler's totient φ(25049) = 24336 numbers up to 25049 share no factor with it.
- 4
The digits of 25049 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 113 steps to reach 1.
LaTeX source of the formulas on this page
\[ 25049 = 37 \times 677 \]
25049 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 25764 |
| Euler totient φ(n) | 24336 |
| Square | 627452401 |
| Cube | 15717055192649 |
| Square root | 158.268759 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 113 |
| Scientific notation | 2.5049 × |
25049 in other forms
| Form | Value |
|---|---|
| In words | twenty-five thousand and forty-nine |
| Binary (base 2) | 110000111011001 |
| Octal (base 8) | 60731 |
| Hexadecimal (base 16) | 61D9 |
| Base 3 | 1021100202 |
| As time | 25049 seconds = 6 h 57 min 29 s |
Is 25049 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 | No (remainder 4) | 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 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 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 9) | 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 25049 a prime number?
No. 25049 = 37 × 677, so it is divisible by 37.
What are the factors of 25049?
1, 37, 677, 25049.
What is 25049 in binary?
110000111011001 (hexadecimal 61D9, octal 60731).
What is the square root of 25049?
About 158.2688.
Is 25049 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 25049?
25049 is a semiprime: 37 × 677, the product of two primes.