The number 7450
7450 is a composite number with 12 divisors. Its prime factorisation is 2 × × 149. Divisors (12): 1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 3725, 7450.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
7450 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
7450 is composite. Its prime factorisation is
- 3
The divisors add up to 13950; without 7450 itself that is 6500, so 7450 is deficient (6500 is less than 7450). Euler's totient φ(7450) = 2960 numbers up to 7450 share no factor with it.
- 4
The digits of 7450 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 39 steps to reach 1.
LaTeX source of the formulas on this page
\[ 7450 = 2 \times 5^{2} \times 149 \]7450 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 13950 |
| Euler totient φ(n) | 2960 |
| Square | 55502500 |
| Cube | 413493625000 |
| Square root | 86.313383 (= 5√298) |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 39 |
| Scientific notation | 7.45 × |
7450 in other forms
| Form | Value |
|---|---|
| In words | seven thousand four hundred and fifty |
| Binary (base 2) | 1110100011010 |
| Octal (base 8) | 16432 |
| Hexadecimal (base 16) | 1D1A |
| Base 3 | 101012221 |
| As time | 7450 seconds = 2 h 4 min 10 s |
Is 7450 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (7450 ÷ 2 = 3725) | 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 (7450 ÷ 5 = 1490) | 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 2) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (7450 ÷ 10 = 745) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 7450 a prime number?
No. 7450 = 2 × × 149, so it is divisible by 2.
What are the factors of 7450?
1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 3725, 7450.
What is 7450 in binary?
1110100011010 (hexadecimal 1D1A, octal 16432).
What is the square root of 7450?
About 86.3134, exactly 5√298.
Is 7450 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 7450?
It is a composite number with 12 divisors.