The number 74425
74425 is a composite number with 12 divisors. Its prime factorisation is × 13 × 229. Divisors (12): 1, 5, 13, 25, 65, 229, 325, 1145, 2977, 5725, 14885, 74425.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
74425 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
74425 is composite. Its prime factorisation is
- 3
The divisors add up to 99820; without 74425 itself that is 25395, so 74425 is deficient (25395 is less than 74425). Euler's totient φ(74425) = 54720 numbers up to 74425 share no factor with it.
- 4
The digits of 74425 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 138 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74425 = 5^{2} \times 13 \times 229 \]74425 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 99820 |
| Euler totient φ(n) | 54720 |
| Square | 5539080625 |
| Cube | 412246075515625 |
| Square root | 272.809457 (= 5√2977) |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 138 |
| Scientific notation | 7.4425 × |
74425 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand four hundred and twenty-five |
| Binary (base 2) | 10010001010111001 |
| Octal (base 8) | 221271 |
| Hexadecimal (base 16) | 122B9 |
| Base 3 | 10210002111 |
| As time | 74425 seconds = 20 h 40 min 25 s |
Is 74425 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (74425 ÷ 5 = 14885) | 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 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 1) | 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 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 74425 a prime number?
No. 74425 = × 13 × 229, so it is divisible by 5.
What are the factors of 74425?
1, 5, 13, 25, 65, 229, 325, 1145, 2977, 5725, 14885, 74425.
What is 74425 in binary?
10010001010111001 (hexadecimal 122B9, octal 221271).
What is the square root of 74425?
About 272.8095, exactly 5√2977.
Is 74425 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 74425?
It is a composite number with 12 divisors.