The number 67378
67378 is a composite number with 8 divisors. Its prime factorisation is 2 × 59 × 571. Divisors (8): 1, 2, 59, 118, 571, 1142, 33689, 67378.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
67378 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
67378 is composite. Its prime factorisation is
- 3
The divisors add up to 102960; without 67378 itself that is 35582, so 67378 is deficient (35582 is less than 67378). Euler's totient φ(67378) = 33060 numbers up to 67378 share no factor with it.
- 4
The digits of 67378 add up to 31, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 68 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67378 = 2 \times 59 \times 571 \]
67378 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 102960 |
| Euler totient φ(n) | 33060 |
| Square | 4539794884 |
| Cube | 305882299694152 |
| Square root | 259.572726 |
| Digit sum / digital root | 31 / 4 |
| Collatz steps to 1 | 68 |
| Scientific notation | 6.7378 × |
67378 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand three hundred and seventy-eight |
| Binary (base 2) | 10000011100110010 |
| Octal (base 8) | 203462 |
| Hexadecimal (base 16) | 10732 |
| Base 3 | 10102102111 |
| As time | 67378 seconds = 18 h 42 min 58 s |
Is 67378 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (67378 ÷ 2 = 33689) | 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 2) | 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 3) | 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 67378 a prime number?
No. 67378 = 2 × 59 × 571, so it is divisible by 2.
What are the factors of 67378?
1, 2, 59, 118, 571, 1142, 33689, 67378.
What is 67378 in binary?
10000011100110010 (hexadecimal 10732, octal 203462).
What is the square root of 67378?
About 259.5727.
Is 67378 divisible by 3?
No. Its digits add up to 31, which is not a multiple of 3.
What is special about the number 67378?
It is a composite number with 8 divisors.