The number 67479
67479 is a composite number with 8 divisors. Its prime factorisation is 3 × 83 × 271. Divisors (8): 1, 3, 83, 249, 271, 813, 22493, 67479.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
67479 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
67479 is composite. Its prime factorisation is
- 3
The divisors add up to 91392; without 67479 itself that is 23913, so 67479 is deficient (23913 is less than 67479). Euler's totient φ(67479) = 44280 numbers up to 67479 share no factor with it.
- 4
The digits of 67479 add up to 33, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 161 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67479 = 3 \times 83 \times 271 \]
67479 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 91392 |
| Euler totient φ(n) | 44280 |
| Square | 4553415441 |
| Cube | 307259920543239 |
| Square root | 259.767203 |
| Digit sum / digital root | 33 / 6 |
| Collatz steps to 1 | 161 |
| Scientific notation | 6.7479 × |
67479 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand four hundred and seventy-nine |
| Binary (base 2) | 10000011110010111 |
| Octal (base 8) | 203627 |
| Hexadecimal (base 16) | 10797 |
| Base 3 | 10102120020 |
| As time | 67479 seconds = 18 h 44 min 39 s |
Is 67479 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 | Yes (67479 ÷ 3 = 22493) | 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 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 67479 a prime number?
No. 67479 = 3 × 83 × 271, so it is divisible by 3.
What are the factors of 67479?
1, 3, 83, 249, 271, 813, 22493, 67479.
What is 67479 in binary?
10000011110010111 (hexadecimal 10797, octal 203627).
What is the square root of 67479?
About 259.7672.
Is 67479 divisible by 3?
Yes. Its digits add up to 33, a multiple of 3.
What is special about the number 67479?
It is a composite number with 8 divisors.