The number 54942
54942 is a composite number with 8 divisors. Its prime factorisation is 2 × 3 × 9157. Divisors (8): 1, 2, 3, 6, 9157, 18314, 27471, 54942.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
54942 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
54942 is composite. Its prime factorisation is
- 3
The divisors add up to 109896; without 54942 itself that is 54954, so 54942 is abundant (54954 is more than 54942). Euler's totient φ(54942) = 18312 numbers up to 54942 share no factor with it.
- 4
The digits of 54942 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 54942 = 2 \times 3 \times 9157 \]
54942 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 109896 |
| Euler totient φ(n) | 18312 |
| Square | 3018623364 |
| Cube | 165849204864888 |
| Square root | 234.397099 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.4942 × |
54942 in other forms
| Form | Value |
|---|---|
| In words | fifty-four thousand nine hundred and forty-two |
| Binary (base 2) | 1101011010011110 |
| Octal (base 8) | 153236 |
| Hexadecimal (base 16) | D69E |
| Base 3 | 2210100220 |
| As time | 54942 seconds = 15 h 15 min 42 s |
Is 54942 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (54942 ÷ 2 = 27471) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (54942 ÷ 3 = 18314) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (54942 ÷ 6 = 9157) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 54942 a prime number?
No. 54942 = 2 × 3 × 9157, so it is divisible by 2.
What are the factors of 54942?
1, 2, 3, 6, 9157, 18314, 27471, 54942.
What is 54942 in binary?
1101011010011110 (hexadecimal D69E, octal 153236).
What is the square root of 54942?
About 234.3971.
Is 54942 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 54942?
It is a composite number with 8 divisors.