The number 42916
42916 is a composite number with 6 divisors. Its prime factorisation is × 10729. Divisors (6): 1, 2, 4, 10729, 21458, 42916.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42916 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42916 is composite. Its prime factorisation is
- 3
The divisors add up to 75110; without 42916 itself that is 32194, so 42916 is deficient (32194 is less than 42916). Euler's totient φ(42916) = 21456 numbers up to 42916 share no factor with it.
- 4
The digits of 42916 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 49 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42916 = 2^{2} \times 10729 \]42916 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 75110 |
| Euler totient φ(n) | 21456 |
| Square | 1841783056 |
| Cube | 79041961631296 |
| Square root | 207.161773 (= 2√10729) |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 49 |
| Scientific notation | 4.2916 × |
42916 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand nine hundred and sixteen |
| Binary (base 2) | 1010011110100100 |
| Octal (base 8) | 123644 |
| Hexadecimal (base 16) | A7A4 |
| Base 3 | 2011212111 |
| As time | 42916 seconds = 11 h 55 min 16 s |
Is 42916 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42916 ÷ 2 = 21458) | 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 | Yes (42916 ÷ 4 = 10729) | 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 4) | 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 4) | 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 6) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42916 a prime number?
No. 42916 = × 10729, so it is divisible by 2.
What are the factors of 42916?
1, 2, 4, 10729, 21458, 42916.
What is 42916 in binary?
1010011110100100 (hexadecimal A7A4, octal 123644).
What is the square root of 42916?
About 207.1618, exactly 2√10729.
Is 42916 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 42916?
It is a composite number with 6 divisors.