The number 84424
84424 is a composite number with 16 divisors. Its prime factorisation is × 61 × 173. Divisors (16): 1, 2, 4, 8, 61, 122, 173, 244, 346, 488, 692, 1384, 10553, 21106, 42212, 84424.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
84424 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
84424 is composite. Its prime factorisation is
- 3
The divisors add up to 161820; without 84424 itself that is 77396, so 84424 is deficient (77396 is less than 84424). Euler's totient φ(84424) = 41280 numbers up to 84424 share no factor with it.
- 4
The digits of 84424 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 107 steps to reach 1.
LaTeX source of the formulas on this page
\[ 84424 = 2^{3} \times 61 \times 173 \]84424 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 161820 |
| Euler totient φ(n) | 41280 |
| Square | 7127411776 |
| Cube | 601724611777024 |
| Square root | 290.558084 (= 2√21106) |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 107 |
| Scientific notation | 8.4424 × |
84424 in other forms
| Form | Value |
|---|---|
| In words | eighty-four thousand four hundred and twenty-four |
| Binary (base 2) | 10100100111001000 |
| Octal (base 8) | 244710 |
| Hexadecimal (base 16) | 149C8 |
| Base 3 | 11021210211 |
| As time | 84424 seconds = 23 h 27 min 4 s |
Is 84424 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (84424 ÷ 2 = 42212) | 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 | Yes (84424 ÷ 4 = 21106) | 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 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 | Yes (84424 ÷ 8 = 10553) | 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 4) | 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 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 84424 a prime number?
No. 84424 = × 61 × 173, so it is divisible by 2.
What are the factors of 84424?
1, 2, 4, 8, 61, 122, 173, 244, 346, 488, 692, 1384, 10553, 21106, 42212, 84424.
What is 84424 in binary?
10100100111001000 (hexadecimal 149C8, octal 244710).
What is the square root of 84424?
About 290.5581, exactly 2√21106.
Is 84424 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 84424?
It is a composite number with 16 divisors.