The number 76142
76142 is a composite number with 8 divisors. Its prime factorisation is 2 × 11 × 3461. Divisors (8): 1, 2, 11, 22, 3461, 6922, 38071, 76142.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
76142 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
76142 is composite. Its prime factorisation is
- 3
The divisors add up to 124632; without 76142 itself that is 48490, so 76142 is deficient (48490 is less than 76142). Euler's totient φ(76142) = 34600 numbers up to 76142 share no factor with it.
- 4
The digits of 76142 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 94 steps to reach 1.
LaTeX source of the formulas on this page
\[ 76142 = 2 \times 11 \times 3461 \]
76142 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 124632 |
| Euler totient φ(n) | 34600 |
| Square | 5797604164 |
| Cube | 441441176255288 |
| Square root | 275.938399 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 94 |
| Scientific notation | 7.6142 × |
76142 in other forms
| Form | Value |
|---|---|
| In words | seventy-six thousand one hundred and forty-two |
| Binary (base 2) | 10010100101101110 |
| Octal (base 8) | 224556 |
| Hexadecimal (base 16) | 1296E |
| Base 3 | 10212110002 |
| As time | 76142 seconds = 21 h 9 min 2 s |
Is 76142 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (76142 ÷ 2 = 38071) | 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 2) | 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 2) | 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 | Yes (76142 ÷ 11 = 6922) | 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 76142 a prime number?
No. 76142 = 2 × 11 × 3461, so it is divisible by 2.
What are the factors of 76142?
1, 2, 11, 22, 3461, 6922, 38071, 76142.
What is 76142 in binary?
10010100101101110 (hexadecimal 1296E, octal 224556).
What is the square root of 76142?
About 275.9384.
Is 76142 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 76142?
It is a composite number with 8 divisors.