The number 43438
43438 is a composite number with 8 divisors. Its prime factorisation is 2 × 37 × 587. Divisors (8): 1, 2, 37, 74, 587, 1174, 21719, 43438.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
43438 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
43438 is composite. Its prime factorisation is
- 3
The divisors add up to 67032; without 43438 itself that is 23594, so 43438 is deficient (23594 is less than 43438). Euler's totient φ(43438) = 21096 numbers up to 43438 share no factor with it.
- 4
The digits of 43438 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 44 steps to reach 1.
LaTeX source of the formulas on this page
\[ 43438 = 2 \times 37 \times 587 \]
43438 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 67032 |
| Euler totient φ(n) | 21096 |
| Square | 1886859844 |
| Cube | 81961417903672 |
| Square root | 208.417850 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 44 |
| Scientific notation | 4.3438 × |
43438 in other forms
| Form | Value |
|---|---|
| In words | forty-three thousand four hundred and thirty-eight |
| Binary (base 2) | 1010100110101110 |
| Octal (base 8) | 124656 |
| Hexadecimal (base 16) | A9AE |
| Base 3 | 2012120211 |
| As time | 43438 seconds = 12 h 3 min 58 s |
Is 43438 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (43438 ÷ 2 = 21719) | 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 3) | 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 3) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | 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 43438 a prime number?
No. 43438 = 2 × 37 × 587, so it is divisible by 2.
What are the factors of 43438?
1, 2, 37, 74, 587, 1174, 21719, 43438.
What is 43438 in binary?
1010100110101110 (hexadecimal A9AE, octal 124656).
What is the square root of 43438?
About 208.4178.
Is 43438 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 43438?
It is a composite number with 8 divisors.