The number 40469
40469 is a composite number with 8 divisors. Its prime factorisation is 11 × 13 × 283. Divisors (8): 1, 11, 13, 143, 283, 3113, 3679, 40469.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
40469 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
40469 is composite. Its prime factorisation is
- 3
The divisors add up to 47712; without 40469 itself that is 7243, so 40469 is deficient (7243 is less than 40469). Euler's totient φ(40469) = 33840 numbers up to 40469 share no factor with it.
- 4
The digits of 40469 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 75 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40469 = 11 \times 13 \times 283 \]
40469 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 47712 |
| Euler totient φ(n) | 33840 |
| Square | 1637739961 |
| Cube | 66277698481709 |
| Square root | 201.169083 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 75 |
| Scientific notation | 4.0469 × |
40469 in other forms
| Form | Value |
|---|---|
| In words | forty thousand four hundred and sixty-nine |
| Binary (base 2) | 1001111000010101 |
| Octal (base 8) | 117025 |
| Hexadecimal (base 16) | 9E15 |
| Base 3 | 2001111212 |
| As time | 40469 seconds = 11 h 14 min 29 s |
Is 40469 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 4) | 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 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (40469 ÷ 11 = 3679) | 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 40469 a prime number?
No. 40469 = 11 × 13 × 283, so it is divisible by 11.
What are the factors of 40469?
1, 11, 13, 143, 283, 3113, 3679, 40469.
What is 40469 in binary?
1001111000010101 (hexadecimal 9E15, octal 117025).
What is the square root of 40469?
About 201.1691.
Is 40469 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 40469?
It is a composite number with 8 divisors.