The number 74450
74450 is a composite number with 12 divisors. Its prime factorisation is 2 × × 1489. Divisors (12): 1, 2, 5, 10, 25, 50, 1489, 2978, 7445, 14890, 37225, 74450.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
74450 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
74450 is composite. Its prime factorisation is
- 3
The divisors add up to 138570; without 74450 itself that is 64120, so 74450 is deficient (64120 is less than 74450). Euler's totient φ(74450) = 29760 numbers up to 74450 share no factor with it.
- 4
The digits of 74450 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 112 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74450 = 2 \times 5^{2} \times 1489 \]74450 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 138570 |
| Euler totient φ(n) | 29760 |
| Square | 5542802500 |
| Cube | 412661646125000 |
| Square root | 272.855273 (= 5√2978) |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 112 |
| Scientific notation | 7.445 × |
74450 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand four hundred and fifty |
| Binary (base 2) | 10010001011010010 |
| Octal (base 8) | 221322 |
| Hexadecimal (base 16) | 122D2 |
| Base 3 | 10210010102 |
| As time | 74450 seconds = 20 h 40 min 50 s |
Is 74450 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (74450 ÷ 2 = 37225) | 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 (74450 ÷ 5 = 14890) | 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 | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (74450 ÷ 10 = 7445) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | 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 74450 a prime number?
No. 74450 = 2 × × 1489, so it is divisible by 2.
What are the factors of 74450?
1, 2, 5, 10, 25, 50, 1489, 2978, 7445, 14890, 37225, 74450.
What is 74450 in binary?
10010001011010010 (hexadecimal 122D2, octal 221322).
What is the square root of 74450?
About 272.8553, exactly 5√2978.
Is 74450 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 74450?
It is a composite number with 12 divisors.