The number 83427
83427 is a composite number with 4 divisors. Its prime factorisation is 3 × 27809. Divisors (4): 1, 3, 27809, 83427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 83427: a semiprime: 3 × 27809, the product of two primes.
- 2
83427 is composite. Its prime factorisation is
- 3
The divisors add up to 111240; without 83427 itself that is 27813, so 83427 is deficient (27813 is less than 83427). Euler's totient φ(83427) = 55616 numbers up to 83427 share no factor with it.
- 4
The digits of 83427 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 107 steps to reach 1.
LaTeX source of the formulas on this page
\[ 83427 = 3 \times 27809 \]
83427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 111240 |
| Euler totient φ(n) | 55616 |
| Square | 6960064329 |
| Cube | 580657286775483 |
| Square root | 288.837324 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 107 |
| Scientific notation | 8.3427 × |
83427 in other forms
| Form | Value |
|---|---|
| In words | eighty-three thousand four hundred and twenty-seven |
| Binary (base 2) | 10100010111100011 |
| Octal (base 8) | 242743 |
| Hexadecimal (base 16) | 145E3 |
| Base 3 | 11020102220 |
| As time | 83427 seconds = 23 h 10 min 27 s |
Is 83427 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 (83427 ÷ 3 = 27809) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 6) | 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 3) | 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 83427 a prime number?
No. 83427 = 3 × 27809, so it is divisible by 3.
What are the factors of 83427?
1, 3, 27809, 83427.
What is 83427 in binary?
10100010111100011 (hexadecimal 145E3, octal 242743).
What is the square root of 83427?
About 288.8373.
Is 83427 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 83427?
83427 is a semiprime: 3 × 27809, the product of two primes.