The number 55444
55444 is a composite number with 12 divisors. Its prime factorisation is × 83 × 167. Divisors (12): 1, 2, 4, 83, 166, 167, 332, 334, 668, 13861, 27722, 55444.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55444 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55444 is composite. Its prime factorisation is
- 3
The divisors add up to 98784; without 55444 itself that is 43340, so 55444 is deficient (43340 is less than 55444). Euler's totient φ(55444) = 27224 numbers up to 55444 share no factor with it.
- 4
The digits of 55444 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 153 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55444 = 2^{2} \times 83 \times 167 \]55444 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 98784 |
| Euler totient φ(n) | 27224 |
| Square | 3074037136 |
| Cube | 170436914968384 |
| Square root | 235.465496 (= 2√13861) |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 153 |
| Scientific notation | 5.5444 × |
55444 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand four hundred and forty-four |
| Binary (base 2) | 1101100010010100 |
| Octal (base 8) | 154224 |
| Hexadecimal (base 16) | D894 |
| Base 3 | 2211001111 |
| As time | 55444 seconds = 15 h 24 min 4 s |
Is 55444 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (55444 ÷ 2 = 27722) | 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 | Yes (55444 ÷ 4 = 13861) | 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 4) | 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 4) | 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 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55444 a prime number?
No. 55444 = × 83 × 167, so it is divisible by 2.
What are the factors of 55444?
1, 2, 4, 83, 166, 167, 332, 334, 668, 13861, 27722, 55444.
What is 55444 in binary?
1101100010010100 (hexadecimal D894, octal 154224).
What is the square root of 55444?
About 235.4655, exactly 2√13861.
Is 55444 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 55444?
It is a composite number with 12 divisors.