The number 40026
40026 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 7 × 953. Divisors (16): 1, 2, 3, 6, 7, 14, 21, 42, 953, 1906, 2859, 5718, 6671, 13342, 20013, 40026.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
40026 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
40026 is composite. Its prime factorisation is
- 3
The divisors add up to 91584; without 40026 itself that is 51558, so 40026 is abundant (51558 is more than 40026). Euler's totient φ(40026) = 11424 numbers up to 40026 share no factor with it.
- 4
The digits of 40026 add up to 12, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 181 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40026 = 2 \times 3 \times 7 \times 953 \]
40026 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 91584 |
| Euler totient φ(n) | 11424 |
| Square | 1602080676 |
| Cube | 64124881137576 |
| Square root | 200.064989 |
| Digit sum / digital root | 12 / 3 |
| Collatz steps to 1 | 181 |
| Scientific notation | 4.0026 × |
40026 in other forms
| Form | Value |
|---|---|
| In words | forty thousand and twenty-six |
| Binary (base 2) | 1001110001011010 |
| Octal (base 8) | 116132 |
| Hexadecimal (base 16) | 9C5A |
| Base 3 | 2000220110 |
| As time | 40026 seconds = 11 h 7 min 6 s |
Is 40026 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (40026 ÷ 2 = 20013) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (40026 ÷ 3 = 13342) | 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 | Yes (40026 ÷ 6 = 6671) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (40026 ÷ 7 = 5718) | 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 3) | 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 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 40026 a prime number?
No. 40026 = 2 × 3 × 7 × 953, so it is divisible by 2.
What are the factors of 40026?
1, 2, 3, 6, 7, 14, 21, 42, 953, 1906, 2859, 5718, 6671, 13342, 20013, 40026.
What is 40026 in binary?
1001110001011010 (hexadecimal 9C5A, octal 116132).
What is the square root of 40026?
About 200.0650.
Is 40026 divisible by 3?
Yes. Its digits add up to 12, a multiple of 3.
What is special about the number 40026?
It is a composite number with 16 divisors.