The number 30673
30673 is a composite number with 4 divisors. Its prime factorisation is 37 × 829. Divisors (4): 1, 37, 829, 30673.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 30673: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 37 × 829, the product of two primes.
- 2
30673 is composite. Its prime factorisation is
- 3
The divisors add up to 31540; without 30673 itself that is 867, so 30673 is deficient (867 is less than 30673). Euler's totient φ(30673) = 29808 numbers up to 30673 share no factor with it.
- 4
The digits of 30673 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 59 steps to reach 1.
LaTeX source of the formulas on this page
\[ 30673 = 37 \times 829 \]
30673 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 31540 |
| Euler totient φ(n) | 29808 |
| Square | 940832929 |
| Cube | 28858168431217 |
| Square root | 175.137089 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 59 |
| Scientific notation | 3.0673 × |
30673 in other forms
| Form | Value |
|---|---|
| In words | thirty thousand six hundred and seventy-three |
| Binary (base 2) | 111011111010001 |
| Octal (base 8) | 73721 |
| Hexadecimal (base 16) | 77D1 |
| Base 3 | 1120002001 |
| As time | 30673 seconds = 8 h 31 min 13 s |
Is 30673 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 30673 a prime number?
No. 30673 = 37 × 829, so it is divisible by 37.
What are the factors of 30673?
1, 37, 829, 30673.
What is 30673 in binary?
111011111010001 (hexadecimal 77D1, octal 73721).
What is the square root of 30673?
About 175.1371.
Is 30673 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 30673?
30673 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 37 × 829, the product of two primes.