The number 24850
24850 is a composite number with 24 divisors. Its prime factorisation is 2 × × 7 × 71. Divisors (24): 1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497 … 24850.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24850: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
24850 is composite. Its prime factorisation is
- 3
The divisors add up to 53568; without 24850 itself that is 28718, so 24850 is abundant (28718 is more than 24850). Euler's totient φ(24850) = 8400 numbers up to 24850 share no factor with it.
- 4
The digits of 24850 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 95 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24850 = 2 \times 5^{2} \times 7 \times 71 \]24850 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 24 |
| Sum of divisors | 53568 |
| Euler totient φ(n) | 8400 |
| Square | 617522500 |
| Cube | 15345434125000 |
| Square root | 157.638828 (= 5√994) |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 95 |
| Scientific notation | 2.485 × |
24850 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand eight hundred and fifty |
| Binary (base 2) | 110000100010010 |
| Octal (base 8) | 60422 |
| Hexadecimal (base 16) | 6112 |
| Base 3 | 1021002101 |
| As time | 24850 seconds = 6 h 54 min 10 s |
Is 24850 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (24850 ÷ 2 = 12425) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (24850 ÷ 5 = 4970) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (24850 ÷ 7 = 3550) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (24850 ÷ 10 = 2485) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24850 a prime number?
No. 24850 = 2 × × 7 × 71, so it is divisible by 2.
What are the factors of 24850?
1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497, 710, 994, 1775, 2485, 3550, 4970, 12425, 24850.
What is 24850 in binary?
110000100010010 (hexadecimal 6112, octal 60422).
What is the square root of 24850?
About 157.6388, exactly 5√994.
Is 24850 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 24850?
24850 is a happy number: repeatedly adding the squares of its digits reaches 1.