The number 42893
42893 is a composite number with 4 divisors. Its prime factorisation is 59 × 727. Divisors (4): 1, 59, 727, 42893.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42893: a semiprime: 59 × 727, the product of two primes.
- 2
42893 is composite. Its prime factorisation is
- 3
The divisors add up to 43680; without 42893 itself that is 787, so 42893 is deficient (787 is less than 42893). Euler's totient φ(42893) = 42108 numbers up to 42893 share no factor with it.
- 4
The digits of 42893 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 75 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42893 = 59 \times 727 \]
42893 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 43680 |
| Euler totient φ(n) | 42108 |
| Square | 1839809449 |
| Cube | 78914946695957 |
| Square root | 207.106253 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 75 |
| Scientific notation | 4.2893 × |
42893 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand eight hundred and ninety-three |
| Binary (base 2) | 1010011110001101 |
| Octal (base 8) | 123615 |
| Hexadecimal (base 16) | A78D |
| Base 3 | 2011211122 |
| As time | 42893 seconds = 11 h 54 min 53 s |
Is 42893 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 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42893 a prime number?
No. 42893 = 59 × 727, so it is divisible by 59.
What are the factors of 42893?
1, 59, 727, 42893.
What is 42893 in binary?
1010011110001101 (hexadecimal A78D, octal 123615).
What is the square root of 42893?
About 207.1063.
Is 42893 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 42893?
42893 is a semiprime: 59 × 727, the product of two primes.