The number 55449
55449 is a composite number with 12 divisors. Its prime factorisation is × 61 × 101. Divisors (12): 1, 3, 9, 61, 101, 183, 303, 549, 909, 6161, 18483, 55449.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55449 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55449 is composite. Its prime factorisation is
- 3
The divisors add up to 82212; without 55449 itself that is 26763, so 55449 is deficient (26763 is less than 55449). Euler's totient φ(55449) = 36000 numbers up to 55449 share no factor with it.
- 4
The digits of 55449 add up to 27, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 228 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55449 = 3^{2} \times 61 \times 101 \]55449 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 82212 |
| Euler totient φ(n) | 36000 |
| Square | 3074591601 |
| Cube | 170483029683849 |
| Square root | 235.476113 (= 3√6161) |
| Digit sum / digital root | 27 / 9 |
| Collatz steps to 1 | 228 |
| Scientific notation | 5.5449 × |
55449 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand four hundred and forty-nine |
| Binary (base 2) | 1101100010011001 |
| Octal (base 8) | 154231 |
| Hexadecimal (base 16) | D899 |
| Base 3 | 2211001200 |
| As time | 55449 seconds = 15 h 24 min 9 s |
Is 55449 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 | Yes (55449 ÷ 3 = 18483) | 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 3) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (55449 ÷ 9 = 6161) | 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 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55449 a prime number?
No. 55449 = × 61 × 101, so it is divisible by 3.
What are the factors of 55449?
1, 3, 9, 61, 101, 183, 303, 549, 909, 6161, 18483, 55449.
What is 55449 in binary?
1101100010011001 (hexadecimal D899, octal 154231).
What is the square root of 55449?
About 235.4761, exactly 3√6161.
Is 55449 divisible by 3?
Yes. Its digits add up to 27, a multiple of 3.
What is special about the number 55449?
It is a composite number with 12 divisors.