The number 73430
73430 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 7 × 1049. Divisors (16): 1, 2, 5, 7, 10, 14, 35, 70, 1049, 2098, 5245, 7343, 10490, 14686, 36715, 73430.
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How to work it out
- 1
73430 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
73430 is composite. Its prime factorisation is
- 3
The divisors add up to 151200; without 73430 itself that is 77770, so 73430 is abundant (77770 is more than 73430). Euler's totient φ(73430) = 25152 numbers up to 73430 share no factor with it.
- 4
The digits of 73430 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 156 steps to reach 1.
LaTeX source of the formulas on this page
\[ 73430 = 2 \times 5 \times 7 \times 1049 \]
73430 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 151200 |
| Euler totient φ(n) | 25152 |
| Square | 5391964900 |
| Cube | 395931982607000 |
| Square root | 270.979704 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 156 |
| Scientific notation | 7.343 × |
73430 in other forms
| Form | Value |
|---|---|
| In words | seventy-three thousand four hundred and thirty |
| Binary (base 2) | 10001111011010110 |
| Octal (base 8) | 217326 |
| Hexadecimal (base 16) | 11ED6 |
| Base 3 | 10201201122 |
| As time | 73430 seconds = 20 h 23 min 50 s |
Is 73430 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (73430 ÷ 2 = 36715) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (73430 ÷ 5 = 14686) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (73430 ÷ 7 = 10490) | 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 6) | 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 | Yes (73430 ÷ 10 = 7343) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 73430 a prime number?
No. 73430 = 2 × 5 × 7 × 1049, so it is divisible by 2.
What are the factors of 73430?
1, 2, 5, 7, 10, 14, 35, 70, 1049, 2098, 5245, 7343, 10490, 14686, 36715, 73430.
What is 73430 in binary?
10001111011010110 (hexadecimal 11ED6, octal 217326).
What is the square root of 73430?
About 270.9797.
Is 73430 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 73430?
It is a composite number with 16 divisors.