The number 40313
40313 is a composite number with 8 divisors. Its prime factorisation is 7 × 13 × 443. Divisors (8): 1, 7, 13, 91, 443, 3101, 5759, 40313.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
40313 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
40313 is composite. Its prime factorisation is
- 3
The divisors add up to 49728; without 40313 itself that is 9415, so 40313 is deficient (9415 is less than 40313). Euler's totient φ(40313) = 31824 numbers up to 40313 share no factor with it.
- 4
The digits of 40313 add up to 11, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 124 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40313 = 7 \times 13 \times 443 \]
40313 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 49728 |
| Euler totient φ(n) | 31824 |
| Square | 1625137969 |
| Cube | 65514186944297 |
| Square root | 200.780975 |
| Digit sum / digital root | 11 / 2 |
| Collatz steps to 1 | 124 |
| Scientific notation | 4.0313 × |
40313 in other forms
| Form | Value |
|---|---|
| In words | forty thousand three hundred and thirteen |
| Binary (base 2) | 1001110101111001 |
| Octal (base 8) | 116571 |
| Hexadecimal (base 16) | 9D79 |
| Base 3 | 2001022002 |
| As time | 40313 seconds = 11 h 11 min 53 s |
Is 40313 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 | Yes (40313 ÷ 7 = 5759) | 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 1) | 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 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | 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 40313 a prime number?
No. 40313 = 7 × 13 × 443, so it is divisible by 7.
What are the factors of 40313?
1, 7, 13, 91, 443, 3101, 5759, 40313.
What is 40313 in binary?
1001110101111001 (hexadecimal 9D79, octal 116571).
What is the square root of 40313?
About 200.7810.
Is 40313 divisible by 3?
No. Its digits add up to 11, which is not a multiple of 3.
What is special about the number 40313?
It is a composite number with 8 divisors.