The number 67471
67471 is a composite number with 4 divisors. Its prime factorisation is 109 × 619. Divisors (4): 1, 109, 619, 67471.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 67471: a semiprime: 109 × 619, the product of two primes.
- 2
67471 is composite. Its prime factorisation is
- 3
The divisors add up to 68200; without 67471 itself that is 729, so 67471 is deficient (729 is less than 67471). Euler's totient φ(67471) = 66744 numbers up to 67471 share no factor with it.
- 4
The digits of 67471 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 60 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67471 = 109 \times 619 \]
67471 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 68200 |
| Euler totient φ(n) | 66744 |
| Square | 4552335841 |
| Cube | 307150651528111 |
| Square root | 259.751805 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 60 |
| Scientific notation | 6.7471 × |
67471 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand four hundred and seventy-one |
| Binary (base 2) | 10000011110001111 |
| Octal (base 8) | 203617 |
| Hexadecimal (base 16) | 1078F |
| Base 3 | 10102112221 |
| As time | 67471 seconds = 18 h 44 min 31 s |
Is 67471 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 3) | 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 1) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 67471 a prime number?
No. 67471 = 109 × 619, so it is divisible by 109.
What are the factors of 67471?
1, 109, 619, 67471.
What is 67471 in binary?
10000011110001111 (hexadecimal 1078F, octal 203617).
What is the square root of 67471?
About 259.7518.
Is 67471 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 67471?
67471 is a semiprime: 109 × 619, the product of two primes.