The number 75074
75074 is a composite number with 4 divisors. Its prime factorisation is 2 × 37537. Divisors (4): 1, 2, 37537, 75074.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 75074: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 37537, the product of two primes.
- 2
75074 is composite. Its prime factorisation is
- 3
The divisors add up to 112614; without 75074 itself that is 37540, so 75074 is deficient (37540 is less than 75074). Euler's totient φ(75074) = 37536 numbers up to 75074 share no factor with it.
- 4
The digits of 75074 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 112 steps to reach 1.
LaTeX source of the formulas on this page
\[ 75074 = 2 \times 37537 \]
75074 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 112614 |
| Euler totient φ(n) | 37536 |
| Square | 5636105476 |
| Cube | 423124982505224 |
| Square root | 273.996350 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 112 |
| Scientific notation | 7.5074 × |
75074 in other forms
| Form | Value |
|---|---|
| In words | seventy-five thousand and seventy-four |
| Binary (base 2) | 10010010101000010 |
| Octal (base 8) | 222502 |
| Hexadecimal (base 16) | 12542 |
| Base 3 | 10210222112 |
| As time | 75074 seconds = 20 h 51 min 14 s |
Is 75074 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (75074 ÷ 2 = 37537) | 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 | No (remainder 4) | 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 6) | 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 5) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 75074 a prime number?
No. 75074 = 2 × 37537, so it is divisible by 2.
What are the factors of 75074?
1, 2, 37537, 75074.
What is 75074 in binary?
10010010101000010 (hexadecimal 12542, octal 222502).
What is the square root of 75074?
About 273.9964.
Is 75074 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 75074?
75074 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 37537, the product of two primes.