The number 38378
38378 is a composite number with 8 divisors. Its prime factorisation is 2 × 31 × 619. Divisors (8): 1, 2, 31, 62, 619, 1238, 19189, 38378.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
38378 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
38378 is composite. Its prime factorisation is
- 3
The divisors add up to 59520; without 38378 itself that is 21142, so 38378 is deficient (21142 is less than 38378). Euler's totient φ(38378) = 18540 numbers up to 38378 share no factor with it.
- 4
The digits of 38378 add up to 29, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 75 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38378 = 2 \times 31 \times 619 \]
38378 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 59520 |
| Euler totient φ(n) | 18540 |
| Square | 1472870884 |
| Cube | 56525838786152 |
| Square root | 195.903037 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 75 |
| Scientific notation | 3.8378 × |
38378 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand three hundred and seventy-eight |
| Binary (base 2) | 1001010111101010 |
| Octal (base 8) | 112752 |
| Hexadecimal (base 16) | 95EA |
| Base 3 | 1221122102 |
| As time | 38378 seconds = 10 h 39 min 38 s |
Is 38378 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (38378 ÷ 2 = 19189) | 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 4) | 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 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 10) | 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 38378 a prime number?
No. 38378 = 2 × 31 × 619, so it is divisible by 2.
What are the factors of 38378?
1, 2, 31, 62, 619, 1238, 19189, 38378.
What is 38378 in binary?
1001010111101010 (hexadecimal 95EA, octal 112752).
What is the square root of 38378?
About 195.9030.
Is 38378 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 38378?
It is a composite number with 8 divisors.