The number 6942
6942 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 13 × 89. Divisors (16): 1, 2, 3, 6, 13, 26, 39, 78, 89, 178, 267, 534, 1157, 2314, 3471, 6942.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
6942 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
6942 is composite. Its prime factorisation is
- 3
The divisors add up to 15120; without 6942 itself that is 8178, so 6942 is abundant (8178 is more than 6942). Euler's totient φ(6942) = 2112 numbers up to 6942 share no factor with it.
- 4
The digits of 6942 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 106 steps to reach 1.
LaTeX source of the formulas on this page
\[ 6942 = 2 \times 3 \times 13 \times 89 \]
6942 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 15120 |
| Euler totient φ(n) | 2112 |
| Square | 48191364 |
| Cube | 334544448888 |
| Square root | 83.318665 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 106 |
| Scientific notation | 6.942 × |
6942 in other forms
| Form | Value |
|---|---|
| In words | six thousand nine hundred and forty-two |
| Binary (base 2) | 1101100011110 |
| Octal (base 8) | 15436 |
| Hexadecimal (base 16) | 1B1E |
| Base 3 | 100112010 |
| As time | 6942 seconds = 1 h 55 min 42 s |
Is 6942 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (6942 ÷ 2 = 3471) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (6942 ÷ 3 = 2314) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (6942 ÷ 6 = 1157) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 6942 a prime number?
No. 6942 = 2 × 3 × 13 × 89, so it is divisible by 2.
What are the factors of 6942?
1, 2, 3, 6, 13, 26, 39, 78, 89, 178, 267, 534, 1157, 2314, 3471, 6942.
What is 6942 in binary?
1101100011110 (hexadecimal 1B1E, octal 15436).
What is the square root of 6942?
About 83.3187.
Is 6942 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 6942?
It is a composite number with 16 divisors.