The number 52742
52742 is a composite number with 4 divisors. Its prime factorisation is 2 × 26371. Divisors (4): 1, 2, 26371, 52742.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 52742: a semiprime: 2 × 26371, the product of two primes.
- 2
52742 is composite. Its prime factorisation is
- 3
The divisors add up to 79116; without 52742 itself that is 26374, so 52742 is deficient (26374 is less than 52742). Euler's totient φ(52742) = 26370 numbers up to 52742 share no factor with it.
- 4
The digits of 52742 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 127 steps to reach 1.
LaTeX source of the formulas on this page
\[ 52742 = 2 \times 26371 \]
52742 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 79116 |
| Euler totient φ(n) | 26370 |
| Square | 2781718564 |
| Cube | 146713400502488 |
| Square root | 229.656265 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 127 |
| Scientific notation | 5.2742 × |
52742 in other forms
| Form | Value |
|---|---|
| In words | fifty-two thousand seven hundred and forty-two |
| Binary (base 2) | 1100111000000110 |
| Octal (base 8) | 147006 |
| Hexadecimal (base 16) | CE06 |
| Base 3 | 2200100102 |
| As time | 52742 seconds = 14 h 39 min 2 s |
Is 52742 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (52742 ÷ 2 = 26371) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | 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 | No (remainder 2) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 52742 a prime number?
No. 52742 = 2 × 26371, so it is divisible by 2.
What are the factors of 52742?
1, 2, 26371, 52742.
What is 52742 in binary?
1100111000000110 (hexadecimal CE06, octal 147006).
What is the square root of 52742?
About 229.6563.
Is 52742 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 52742?
52742 is a semiprime: 2 × 26371, the product of two primes.