The number 55549
55549 is a composite number with 4 divisors. Its prime factorisation is 13 × 4273. Divisors (4): 1, 13, 4273, 55549.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 55549: a semiprime: 13 × 4273, the product of two primes.
- 2
55549 is composite. Its prime factorisation is
- 3
The divisors add up to 59836; without 55549 itself that is 4287, so 55549 is deficient (4287 is less than 55549). Euler's totient φ(55549) = 51264 numbers up to 55549 share no factor with it.
- 4
The digits of 55549 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 259 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55549 = 13 \times 4273 \]
55549 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 59836 |
| Euler totient φ(n) | 51264 |
| Square | 3085691401 |
| Cube | 171407071634149 |
| Square root | 235.688354 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 259 |
| Scientific notation | 5.5549 × |
55549 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand five hundred and forty-nine |
| Binary (base 2) | 1101100011111101 |
| Octal (base 8) | 154375 |
| Hexadecimal (base 16) | D8FD |
| Base 3 | 2211012101 |
| As time | 55549 seconds = 15 h 25 min 49 s |
Is 55549 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 4) | 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 10) | 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 55549 a prime number?
No. 55549 = 13 × 4273, so it is divisible by 13.
What are the factors of 55549?
1, 13, 4273, 55549.
What is 55549 in binary?
1101100011111101 (hexadecimal D8FD, octal 154375).
What is the square root of 55549?
About 235.6884.
Is 55549 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 55549?
55549 is a semiprime: 13 × 4273, the product of two primes.