The number 74427
74427 is a composite number with 4 divisors. Its prime factorisation is 3 × 24809. Divisors (4): 1, 3, 24809, 74427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 74427: a semiprime: 3 × 24809, the product of two primes.
- 2
74427 is composite. Its prime factorisation is
- 3
The divisors add up to 99240; without 74427 itself that is 24813, so 74427 is deficient (24813 is less than 74427). Euler's totient φ(74427) = 49616 numbers up to 74427 share no factor with it.
- 4
The digits of 74427 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 187 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74427 = 3 \times 24809 \]
74427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 99240 |
| Euler totient φ(n) | 49616 |
| Square | 5539378329 |
| Cube | 412279310892483 |
| Square root | 272.813123 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 187 |
| Scientific notation | 7.4427 × |
74427 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand four hundred and twenty-seven |
| Binary (base 2) | 10010001010111011 |
| Octal (base 8) | 221273 |
| Hexadecimal (base 16) | 122BB |
| Base 3 | 10210002120 |
| As time | 74427 seconds = 20 h 40 min 27 s |
Is 74427 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 (74427 ÷ 3 = 24809) | 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 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 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 1) | 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 74427 a prime number?
No. 74427 = 3 × 24809, so it is divisible by 3.
What are the factors of 74427?
1, 3, 24809, 74427.
What is 74427 in binary?
10010001010111011 (hexadecimal 122BB, octal 221273).
What is the square root of 74427?
About 272.8131.
Is 74427 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 74427?
74427 is a semiprime: 3 × 24809, the product of two primes.