The number 67406
67406 is a composite number with 4 divisors. Its prime factorisation is 2 × 33703. Divisors (4): 1, 2, 33703, 67406.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 67406: a semiprime: 2 × 33703, the product of two primes.
- 2
67406 is composite. Its prime factorisation is
- 3
The divisors add up to 101112; without 67406 itself that is 33706, so 67406 is deficient (33706 is less than 67406). Euler's totient φ(67406) = 33702 numbers up to 67406 share no factor with it.
- 4
The digits of 67406 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 68 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67406 = 2 \times 33703 \]
67406 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 101112 |
| Euler totient φ(n) | 33702 |
| Square | 4543568836 |
| Cube | 306263800959416 |
| Square root | 259.626655 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 68 |
| Scientific notation | 6.7406 × |
67406 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand four hundred and six |
| Binary (base 2) | 10000011101001110 |
| Octal (base 8) | 203516 |
| Hexadecimal (base 16) | 1074E |
| Base 3 | 10102110112 |
| As time | 67406 seconds = 18 h 43 min 26 s |
Is 67406 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (67406 ÷ 2 = 33703) | 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 1) | 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 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 6) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | 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 67406 a prime number?
No. 67406 = 2 × 33703, so it is divisible by 2.
What are the factors of 67406?
1, 2, 33703, 67406.
What is 67406 in binary?
10000011101001110 (hexadecimal 1074E, octal 203516).
What is the square root of 67406?
About 259.6267.
Is 67406 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 67406?
67406 is a semiprime: 2 × 33703, the product of two primes.