The number 2550
2550 is a composite number with 24 divisors. Its prime factorisation is 2 × 3 × × 17. Divisors (24): 1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102 … 2550.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
2550 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
2550 is composite. Its prime factorisation is
- 3
The divisors add up to 6696; without 2550 itself that is 4146, so 2550 is abundant (4146 is more than 2550). Euler's totient φ(2550) = 640 numbers up to 2550 share no factor with it.
- 4
The digits of 2550 add up to 12, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 84 steps to reach 1.
LaTeX source of the formulas on this page
\[ 2550 = 2 \times 3 \times 5^{2} \times 17 \]2550 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 24 |
| Sum of divisors | 6696 |
| Euler totient φ(n) | 640 |
| Square | 6502500 |
| Cube | 16581375000 |
| Square root | 50.497525 (= 5√102) |
| Digit sum / digital root | 12 / 3 |
| Collatz steps to 1 | 84 |
| Scientific notation | 2.55 × |
2550 in other forms
| Form | Value |
|---|---|
| In words | two thousand five hundred and fifty |
| Roman numerals | MMDL |
| Binary (base 2) | 100111110110 |
| Octal (base 8) | 4766 |
| Hexadecimal (base 16) | 9F6 |
| Base 3 | 10111110 |
| As time | 2550 seconds = 42 min 30 s |
Is 2550 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (2550 ÷ 2 = 1275) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (2550 ÷ 3 = 850) | 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 (2550 ÷ 5 = 510) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (2550 ÷ 6 = 425) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (2550 ÷ 10 = 255) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 2550 a prime number?
No. 2550 = 2 × 3 × × 17, so it is divisible by 2.
What are the factors of 2550?
1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 150, 170, 255, 425, 510, 850, 1275, 2550.
What is 2550 in binary?
100111110110 (hexadecimal 9F6, octal 4766).
What is the square root of 2550?
About 50.4975, exactly 5√102.
What is 2550 in Roman numerals?
MMDL.
Is 2550 divisible by 3?
Yes. Its digits add up to 12, a multiple of 3.
What is special about the number 2550?
It is a composite number with 24 divisors.