The number 3679
3679 is a composite number with 4 divisors. Its prime factorisation is 13 × 283. Divisors (4): 1, 13, 283, 3679.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 3679: a semiprime: 13 × 283, the product of two primes.
- 2
3679 is composite. Its prime factorisation is
- 3
The divisors add up to 3976; without 3679 itself that is 297, so 3679 is deficient (297 is less than 3679). Euler's totient φ(3679) = 3384 numbers up to 3679 share no factor with it.
- 4
The digits of 3679 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 162 steps to reach 1.
LaTeX source of the formulas on this page
\[ 3679 = 13 \times 283 \]
3679 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 3976 |
| Euler totient φ(n) | 3384 |
| Square | 13535041 |
| Cube | 49795415839 |
| Square root | 60.654761 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 162 |
| Scientific notation | 3.679 × |
3679 in other forms
| Form | Value |
|---|---|
| In words | three thousand six hundred and seventy-nine |
| Roman numerals | MMMDCLXXIX |
| Binary (base 2) | 111001011111 |
| Octal (base 8) | 7137 |
| Hexadecimal (base 16) | E5F |
| Base 3 | 12001021 |
| As time | 3679 seconds = 1 h 1 min 19 s |
Is 3679 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 3) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 7) | 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 | No (remainder 9) | 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 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 3679 a prime number?
No. 3679 = 13 × 283, so it is divisible by 13.
What are the factors of 3679?
1, 13, 283, 3679.
What is 3679 in binary?
111001011111 (hexadecimal E5F, octal 7137).
What is the square root of 3679?
About 60.6548.
What is 3679 in Roman numerals?
MMMDCLXXIX.
Is 3679 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 3679?
3679 is a semiprime: 13 × 283, the product of two primes.