The number 5549
5549 is a composite number with 4 divisors. Its prime factorisation is 31 × 179. Divisors (4): 1, 31, 179, 5549.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 5549: a semiprime: 31 × 179, the product of two primes.
- 2
5549 is composite. Its prime factorisation is
- 3
The divisors add up to 5760; without 5549 itself that is 211, so 5549 is deficient (211 is less than 5549). Euler's totient φ(5549) = 5340 numbers up to 5549 share no factor with it.
- 4
The digits of 5549 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 67 steps to reach 1.
LaTeX source of the formulas on this page
\[ 5549 = 31 \times 179 \]
5549 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 5760 |
| Euler totient φ(n) | 5340 |
| Square | 30791401 |
| Cube | 170861484149 |
| Square root | 74.491610 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 67 |
| Scientific notation | 5.549 × |
5549 in other forms
| Form | Value |
|---|---|
| In words | five thousand five hundred and forty-nine |
| Binary (base 2) | 1010110101101 |
| Octal (base 8) | 12655 |
| Hexadecimal (base 16) | 15AD |
| Base 3 | 21121112 |
| As time | 5549 seconds = 1 h 32 min 29 s |
Is 5549 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 2) | 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 5) | 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 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 5549 a prime number?
No. 5549 = 31 × 179, so it is divisible by 31.
What are the factors of 5549?
1, 31, 179, 5549.
What is 5549 in binary?
1010110101101 (hexadecimal 15AD, octal 12655).
What is the square root of 5549?
About 74.4916.
Is 5549 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 5549?
5549 is a semiprime: 31 × 179, the product of two primes.