The number 55471
55471 is a composite number with 8 divisors. Its prime factorisation is 13 × 17 × 251. Divisors (8): 1, 13, 17, 221, 251, 3263, 4267, 55471.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55471 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55471 is composite. Its prime factorisation is
- 3
The divisors add up to 63504; without 55471 itself that is 8033, so 55471 is deficient (8033 is less than 55471). Euler's totient φ(55471) = 48000 numbers up to 55471 share no factor with it.
- 4
The digits of 55471 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 114 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55471 = 13 \times 17 \times 251 \]
55471 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 63504 |
| Euler totient φ(n) | 48000 |
| Square | 3077031841 |
| Cube | 170686033252111 |
| Square root | 235.522823 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 114 |
| Scientific notation | 5.5471 × |
55471 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand four hundred and seventy-one |
| Binary (base 2) | 1101100010101111 |
| Octal (base 8) | 154257 |
| Hexadecimal (base 16) | D8AF |
| Base 3 | 2211002111 |
| As time | 55471 seconds = 15 h 24 min 31 s |
Is 55471 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 1) | 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 3) | 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 7) | 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 1) | 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 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55471 a prime number?
No. 55471 = 13 × 17 × 251, so it is divisible by 13.
What are the factors of 55471?
1, 13, 17, 221, 251, 3263, 4267, 55471.
What is 55471 in binary?
1101100010101111 (hexadecimal D8AF, octal 154257).
What is the square root of 55471?
About 235.5228.
Is 55471 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 55471?
It is a composite number with 8 divisors.