The number 49542
49542 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 23 × 359. Divisors (16): 1, 2, 3, 6, 23, 46, 69, 138, 359, 718, 1077, 2154, 8257, 16514, 24771, 49542.
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How to work it out
- 1
49542 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49542 is composite. Its prime factorisation is
- 3
The divisors add up to 103680; without 49542 itself that is 54138, so 49542 is abundant (54138 is more than 49542). Euler's totient φ(49542) = 15752 numbers up to 49542 share no factor with it.
- 4
The digits of 49542 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 96 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49542 = 2 \times 3 \times 23 \times 359 \]
49542 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 103680 |
| Euler totient φ(n) | 15752 |
| Square | 2454409764 |
| Cube | 121596368528088 |
| Square root | 222.580323 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 96 |
| Scientific notation | 4.9542 × |
49542 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand five hundred and forty-two |
| Binary (base 2) | 1100000110000110 |
| Octal (base 8) | 140606 |
| Hexadecimal (base 16) | C186 |
| Base 3 | 2111221220 |
| As time | 49542 seconds = 13 h 45 min 42 s |
Is 49542 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (49542 ÷ 2 = 24771) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (49542 ÷ 3 = 16514) | 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 (49542 ÷ 6 = 8257) | 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 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 9) | 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 49542 a prime number?
No. 49542 = 2 × 3 × 23 × 359, so it is divisible by 2.
What are the factors of 49542?
1, 2, 3, 6, 23, 46, 69, 138, 359, 718, 1077, 2154, 8257, 16514, 24771, 49542.
What is 49542 in binary?
1100000110000110 (hexadecimal C186, octal 140606).
What is the square root of 49542?
About 222.5803.
Is 49542 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 49542?
It is a composite number with 16 divisors.