The number 42835
42835 is a composite number with 8 divisors. Its prime factorisation is 5 × 13 × 659. Divisors (8): 1, 5, 13, 65, 659, 3295, 8567, 42835.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42835 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42835 is composite. Its prime factorisation is
- 3
The divisors add up to 55440; without 42835 itself that is 12605, so 42835 is deficient (12605 is less than 42835). Euler's totient φ(42835) = 31584 numbers up to 42835 share no factor with it.
- 4
The digits of 42835 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 238 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42835 = 5 \times 13 \times 659 \]
42835 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 55440 |
| Euler totient φ(n) | 31584 |
| Square | 1834837225 |
| Cube | 78595252532875 |
| Square root | 206.966181 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 238 |
| Scientific notation | 4.2835 × |
42835 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand eight hundred and thirty-five |
| Binary (base 2) | 1010011101010011 |
| Octal (base 8) | 123523 |
| Hexadecimal (base 16) | A753 |
| Base 3 | 2011202111 |
| As time | 42835 seconds = 11 h 53 min 55 s |
Is 42835 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 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (42835 ÷ 5 = 8567) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 3) | 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 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42835 a prime number?
No. 42835 = 5 × 13 × 659, so it is divisible by 5.
What are the factors of 42835?
1, 5, 13, 65, 659, 3295, 8567, 42835.
What is 42835 in binary?
1010011101010011 (hexadecimal A753, octal 123523).
What is the square root of 42835?
About 206.9662.
Is 42835 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 42835?
It is a composite number with 8 divisors.