The number 55210
55210 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 5521. Divisors (8): 1, 2, 5, 10, 5521, 11042, 27605, 55210.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55210 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55210 is composite. Its prime factorisation is
- 3
The divisors add up to 99396; without 55210 itself that is 44186, so 55210 is deficient (44186 is less than 55210). Euler's totient φ(55210) = 22080 numbers up to 55210 share no factor with it.
- 4
The digits of 55210 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 47 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55210 = 2 \times 5 \times 5521 \]
55210 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 99396 |
| Euler totient φ(n) | 22080 |
| Square | 3048144100 |
| Cube | 168288035761000 |
| Square root | 234.968083 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 47 |
| Scientific notation | 5.521 × |
55210 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand two hundred and ten |
| Binary (base 2) | 1101011110101010 |
| Octal (base 8) | 153652 |
| Hexadecimal (base 16) | D7AA |
| Base 3 | 2210201211 |
| As time | 55210 seconds = 15 h 20 min 10 s |
Is 55210 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (55210 ÷ 2 = 27605) | 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 (55210 ÷ 5 = 11042) | 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 | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (55210 ÷ 10 = 5521) | 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 55210 a prime number?
No. 55210 = 2 × 5 × 5521, so it is divisible by 2.
What are the factors of 55210?
1, 2, 5, 10, 5521, 11042, 27605, 55210.
What is 55210 in binary?
1101011110101010 (hexadecimal D7AA, octal 153652).
What is the square root of 55210?
About 234.9681.
Is 55210 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 55210?
It is a composite number with 8 divisors.