The number 67690
67690 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 7 × 967. Divisors (16): 1, 2, 5, 7, 10, 14, 35, 70, 967, 1934, 4835, 6769, 9670, 13538, 33845, 67690.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
67690 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
67690 is composite. Its prime factorisation is
- 3
The divisors add up to 139392; without 67690 itself that is 71702, so 67690 is abundant (71702 is more than 67690). Euler's totient φ(67690) = 23184 numbers up to 67690 share no factor with it.
- 4
The digits of 67690 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 86 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67690 = 2 \times 5 \times 7 \times 967 \]
67690 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 139392 |
| Euler totient φ(n) | 23184 |
| Square | 4581936100 |
| Cube | 310151254609000 |
| Square root | 260.173019 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 86 |
| Scientific notation | 6.769 × |
67690 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand six hundred and ninety |
| Binary (base 2) | 10000100001101010 |
| Octal (base 8) | 204152 |
| Hexadecimal (base 16) | 1086A |
| Base 3 | 10102212001 |
| As time | 67690 seconds = 18 h 48 min 10 s |
Is 67690 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (67690 ÷ 2 = 33845) | 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 | Yes (67690 ÷ 5 = 13538) | 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 | Yes (67690 ÷ 7 = 9670) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (67690 ÷ 10 = 6769) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | 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 67690 a prime number?
No. 67690 = 2 × 5 × 7 × 967, so it is divisible by 2.
What are the factors of 67690?
1, 2, 5, 7, 10, 14, 35, 70, 967, 1934, 4835, 6769, 9670, 13538, 33845, 67690.
What is 67690 in binary?
10000100001101010 (hexadecimal 1086A, octal 204152).
What is the square root of 67690?
About 260.1730.
Is 67690 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 67690?
It is a composite number with 16 divisors.