The number 41438
41438 is a composite number with 4 divisors. Its prime factorisation is 2 × 20719. Divisors (4): 1, 2, 20719, 41438.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 41438: a semiprime: 2 × 20719, the product of two primes.
- 2
41438 is composite. Its prime factorisation is
- 3
The divisors add up to 62160; without 41438 itself that is 20722, so 41438 is deficient (20722 is less than 41438). Euler's totient φ(41438) = 20718 numbers up to 41438 share no factor with it.
- 4
The digits of 41438 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 62 steps to reach 1.
LaTeX source of the formulas on this page
\[ 41438 = 2 \times 20719 \]
41438 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 62160 |
| Euler totient φ(n) | 20718 |
| Square | 1717107844 |
| Cube | 71153514839672 |
| Square root | 203.563258 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 62 |
| Scientific notation | 4.1438 × |
41438 in other forms
| Form | Value |
|---|---|
| In words | forty-one thousand four hundred and thirty-eight |
| Binary (base 2) | 1010000111011110 |
| Octal (base 8) | 120736 |
| Hexadecimal (base 16) | A1DE |
| Base 3 | 2002211202 |
| As time | 41438 seconds = 11 h 30 min 38 s |
Is 41438 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (41438 ÷ 2 = 20719) | 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 5) | 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 1) | 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 41438 a prime number?
No. 41438 = 2 × 20719, so it is divisible by 2.
What are the factors of 41438?
1, 2, 20719, 41438.
What is 41438 in binary?
1010000111011110 (hexadecimal A1DE, octal 120736).
What is the square root of 41438?
About 203.5633.
Is 41438 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 41438?
41438 is a semiprime: 2 × 20719, the product of two primes.