The number 40426
40426 is a composite number with 16 divisors. Its prime factorisation is 2 × 17 × 29 × 41. Divisors (16): 1, 2, 17, 29, 34, 41, 58, 82, 493, 697, 986, 1189, 1394, 2378, 20213, 40426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
40426 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
40426 is composite. Its prime factorisation is
- 3
The divisors add up to 68040; without 40426 itself that is 27614, so 40426 is deficient (27614 is less than 40426). Euler's totient φ(40426) = 17920 numbers up to 40426 share no factor with it.
- 4
The digits of 40426 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 181 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40426 = 2 \times 17 \times 29 \times 41 \]
40426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 68040 |
| Euler totient φ(n) | 17920 |
| Square | 1634261476 |
| Cube | 66066654428776 |
| Square root | 201.062179 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 181 |
| Scientific notation | 4.0426 × |
40426 in other forms
| Form | Value |
|---|---|
| In words | forty thousand four hundred and twenty-six |
| Binary (base 2) | 1001110111101010 |
| Octal (base 8) | 116752 |
| Hexadecimal (base 16) | 9DEA |
| Base 3 | 2001110021 |
| As time | 40426 seconds = 11 h 13 min 46 s |
Is 40426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (40426 ÷ 2 = 20213) | 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 2) | 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 1) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | 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 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 40426 a prime number?
No. 40426 = 2 × 17 × 29 × 41, so it is divisible by 2.
What are the factors of 40426?
1, 2, 17, 29, 34, 41, 58, 82, 493, 697, 986, 1189, 1394, 2378, 20213, 40426.
What is 40426 in binary?
1001110111101010 (hexadecimal 9DEA, octal 116752).
What is the square root of 40426?
About 201.0622.
Is 40426 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 40426?
It is a composite number with 16 divisors.