The number 50438
50438 is a composite number with 4 divisors. Its prime factorisation is 2 × 25219. Divisors (4): 1, 2, 25219, 50438.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50438: a semiprime: 2 × 25219, the product of two primes.
- 2
50438 is composite. Its prime factorisation is
- 3
The divisors add up to 75660; without 50438 itself that is 25222, so 50438 is deficient (25222 is less than 50438). Euler's totient φ(50438) = 25218 numbers up to 50438 share no factor with it.
- 4
The digits of 50438 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50438 = 2 \times 25219 \]
50438 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 75660 |
| Euler totient φ(n) | 25218 |
| Square | 2543991844 |
| Cube | 128313860627672 |
| Square root | 224.584060 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.0438 × |
50438 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand four hundred and thirty-eight |
| Binary (base 2) | 1100010100000110 |
| Octal (base 8) | 142406 |
| Hexadecimal (base 16) | C506 |
| Base 3 | 2120012002 |
| As time | 50438 seconds = 14 h 0 min 38 s |
Is 50438 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (50438 ÷ 2 = 25219) | 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 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 2) | 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 2) | 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 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50438 a prime number?
No. 50438 = 2 × 25219, so it is divisible by 2.
What are the factors of 50438?
1, 2, 25219, 50438.
What is 50438 in binary?
1100010100000110 (hexadecimal C506, octal 142406).
What is the square root of 50438?
About 224.5841.
Is 50438 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 50438?
50438 is a semiprime: 2 × 25219, the product of two primes.