The number 36742
36742 is a composite number with 4 divisors. Its prime factorisation is 2 × 18371. Divisors (4): 1, 2, 18371, 36742.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 36742: a semiprime: 2 × 18371, the product of two primes.
- 2
36742 is composite. Its prime factorisation is
- 3
The divisors add up to 55116; without 36742 itself that is 18374, so 36742 is deficient (18374 is less than 36742). Euler's totient φ(36742) = 18370 numbers up to 36742 share no factor with it.
- 4
The digits of 36742 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 186 steps to reach 1.
LaTeX source of the formulas on this page
\[ 36742 = 2 \times 18371 \]
36742 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 55116 |
| Euler totient φ(n) | 18370 |
| Square | 1349974564 |
| Cube | 49600765430488 |
| Square root | 191.682028 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 186 |
| Scientific notation | 3.6742 × |
36742 in other forms
| Form | Value |
|---|---|
| In words | thirty-six thousand seven hundred and forty-two |
| Binary (base 2) | 1000111110000110 |
| Octal (base 8) | 107606 |
| Hexadecimal (base 16) | 8F86 |
| Base 3 | 1212101211 |
| As time | 36742 seconds = 10 h 12 min 22 s |
Is 36742 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (36742 ÷ 2 = 18371) | 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 | No (remainder 2) | 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 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 6) | 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 2) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 36742 a prime number?
No. 36742 = 2 × 18371, so it is divisible by 2.
What are the factors of 36742?
1, 2, 18371, 36742.
What is 36742 in binary?
1000111110000110 (hexadecimal 8F86, octal 107606).
What is the square root of 36742?
About 191.6820.
Is 36742 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 36742?
36742 is a semiprime: 2 × 18371, the product of two primes.