The number 77107
77107 is a composite number with 4 divisors. Its prime factorisation is 83 × 929. Divisors (4): 1, 83, 929, 77107.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 77107: a semiprime: 83 × 929, the product of two primes.
- 2
77107 is composite. Its prime factorisation is
- 3
The divisors add up to 78120; without 77107 itself that is 1013, so 77107 is deficient (1013 is less than 77107). Euler's totient φ(77107) = 76096 numbers up to 77107 share no factor with it.
- 4
The digits of 77107 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 169 steps to reach 1.
LaTeX source of the formulas on this page
\[ 77107 = 83 \times 929 \]
77107 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 78120 |
| Euler totient φ(n) | 76096 |
| Square | 5945489449 |
| Cube | 458438854944043 |
| Square root | 277.681472 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 169 |
| Scientific notation | 7.7107 × |
77107 in other forms
| Form | Value |
|---|---|
| In words | seventy-seven thousand one hundred and seven |
| Binary (base 2) | 10010110100110011 |
| Octal (base 8) | 226463 |
| Hexadecimal (base 16) | 12D33 |
| Base 3 | 10220202211 |
| As time | 77107 seconds = 21 h 25 min 7 s |
Is 77107 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 2) | 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 2) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | 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 77107 a prime number?
No. 77107 = 83 × 929, so it is divisible by 83.
What are the factors of 77107?
1, 83, 929, 77107.
What is 77107 in binary?
10010110100110011 (hexadecimal 12D33, octal 226463).
What is the square root of 77107?
About 277.6815.
Is 77107 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 77107?
77107 is a semiprime: 83 × 929, the product of two primes.