The number 74950
74950 is a composite number with 12 divisors. Its prime factorisation is 2 × × 1499. Divisors (12): 1, 2, 5, 10, 25, 50, 1499, 2998, 7495, 14990, 37475, 74950.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 74950: a Harshad number: divisible by its digit sum 25.
- 2
74950 is composite. Its prime factorisation is
- 3
The divisors add up to 139500; without 74950 itself that is 64550, so 74950 is deficient (64550 is less than 74950). Euler's totient φ(74950) = 29960 numbers up to 74950 share no factor with it.
- 4
The digits of 74950 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 63 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74950 = 2 \times 5^{2} \times 1499 \]74950 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 139500 |
| Euler totient φ(n) | 29960 |
| Square | 5617502500 |
| Cube | 421031812375000 |
| Square root | 273.769976 (= 5√2998) |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 63 |
| Scientific notation | 7.495 × |
74950 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand nine hundred and fifty |
| Binary (base 2) | 10010010011000110 |
| Octal (base 8) | 222306 |
| Hexadecimal (base 16) | 124C6 |
| Base 3 | 10210210221 |
| As time | 74950 seconds = 20 h 49 min 10 s |
Is 74950 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (74950 ÷ 2 = 37475) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (74950 ÷ 5 = 14990) | 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 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (74950 ÷ 10 = 7495) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 74950 a prime number?
No. 74950 = 2 × × 1499, so it is divisible by 2.
What are the factors of 74950?
1, 2, 5, 10, 25, 50, 1499, 2998, 7495, 14990, 37475, 74950.
What is 74950 in binary?
10010010011000110 (hexadecimal 124C6, octal 222306).
What is the square root of 74950?
About 273.7700, exactly 5√2998.
Is 74950 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 74950?
74950 is a Harshad number: divisible by its digit sum 25.