The number 40835
40835 is a composite number with 4 divisors. Its prime factorisation is 5 × 8167. Divisors (4): 1, 5, 8167, 40835.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 40835: a semiprime: 5 × 8167, the product of two primes.
- 2
40835 is composite. Its prime factorisation is
- 3
The divisors add up to 49008; without 40835 itself that is 8173, so 40835 is deficient (8173 is less than 40835). Euler's totient φ(40835) = 32664 numbers up to 40835 share no factor with it.
- 4
The digits of 40835 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 88 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40835 = 5 \times 8167 \]
40835 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 49008 |
| Euler totient φ(n) | 32664 |
| Square | 1667497225 |
| Cube | 68092249182875 |
| Square root | 202.076718 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 88 |
| Scientific notation | 4.0835 × |
40835 in other forms
| Form | Value |
|---|---|
| In words | forty thousand eight hundred and thirty-five |
| Binary (base 2) | 1001111110000011 |
| Octal (base 8) | 117603 |
| Hexadecimal (base 16) | 9F83 |
| Base 3 | 2002000102 |
| As time | 40835 seconds = 11 h 20 min 35 s |
Is 40835 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (40835 ÷ 5 = 8167) | 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 3) | 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 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 40835 a prime number?
No. 40835 = 5 × 8167, so it is divisible by 5.
What are the factors of 40835?
1, 5, 8167, 40835.
What is 40835 in binary?
1001111110000011 (hexadecimal 9F83, octal 117603).
What is the square root of 40835?
About 202.0767.
Is 40835 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 40835?
40835 is a semiprime: 5 × 8167, the product of two primes.