The number 74429
74429 is a composite number with 4 divisors. Its prime factorisation is 263 × 283. Divisors (4): 1, 263, 283, 74429.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 74429: a semiprime: 263 × 283, the product of two primes.
- 2
74429 is composite. Its prime factorisation is
- 3
The divisors add up to 74976; without 74429 itself that is 547, so 74429 is deficient (547 is less than 74429). Euler's totient φ(74429) = 73884 numbers up to 74429 share no factor with it.
- 4
The digits of 74429 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 138 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74429 = 263 \times 283 \]
74429 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 74976 |
| Euler totient φ(n) | 73884 |
| Square | 5539676041 |
| Cube | 412312548055589 |
| Square root | 272.816788 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 138 |
| Scientific notation | 7.4429 × |
74429 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand four hundred and twenty-nine |
| Binary (base 2) | 10010001010111101 |
| Octal (base 8) | 221275 |
| Hexadecimal (base 16) | 122BD |
| Base 3 | 10210002122 |
| As time | 74429 seconds = 20 h 40 min 29 s |
Is 74429 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 2) | 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 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 74429 a prime number?
No. 74429 = 263 × 283, so it is divisible by 263.
What are the factors of 74429?
1, 263, 283, 74429.
What is 74429 in binary?
10010001010111101 (hexadecimal 122BD, octal 221275).
What is the square root of 74429?
About 272.8168.
Is 74429 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 74429?
74429 is a semiprime: 263 × 283, the product of two primes.