The number 24949
24949 is a composite number with 4 divisors. Its prime factorisation is 61 × 409. Divisors (4): 1, 61, 409, 24949.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24949: a semiprime: 61 × 409, the product of two primes.
- 2
24949 is composite. Its prime factorisation is
- 3
The divisors add up to 25420; without 24949 itself that is 471, so 24949 is deficient (471 is less than 24949). Euler's totient φ(24949) = 24480 numbers up to 24949 share no factor with it.
- 4
The digits of 24949 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 64 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24949 = 61 \times 409 \]
24949 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 25420 |
| Euler totient φ(n) | 24480 |
| Square | 622452601 |
| Cube | 15529569942349 |
| Square root | 157.952525 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 64 |
| Scientific notation | 2.4949 × |
24949 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand nine hundred and forty-nine |
| Binary (base 2) | 110000101110101 |
| Octal (base 8) | 60565 |
| Hexadecimal (base 16) | 6175 |
| Base 3 | 1021020001 |
| As time | 24949 seconds = 6 h 55 min 49 s |
Is 24949 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 1) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | 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 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24949 a prime number?
No. 24949 = 61 × 409, so it is divisible by 61.
What are the factors of 24949?
1, 61, 409, 24949.
What is 24949 in binary?
110000101110101 (hexadecimal 6175, octal 60565).
What is the square root of 24949?
About 157.9525.
Is 24949 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 24949?
24949 is a semiprime: 61 × 409, the product of two primes.