The number 3385
3385 is a composite number with 4 divisors. Its prime factorisation is 5 × 677. Divisors (4): 1, 5, 677, 3385.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 3385: a semiprime: 5 × 677, the product of two primes.
- 2
3385 is composite. Its prime factorisation is
- 3
The divisors add up to 4068; without 3385 itself that is 683, so 3385 is deficient (683 is less than 3385). Euler's totient φ(3385) = 2704 numbers up to 3385 share no factor with it.
- 4
The digits of 3385 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 180 steps to reach 1.
LaTeX source of the formulas on this page
\[ 3385 = 5 \times 677 \]
3385 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 4068 |
| Euler totient φ(n) | 2704 |
| Square | 11458225 |
| Cube | 38786091625 |
| Square root | 58.180753 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 180 |
| Scientific notation | 3.385 × |
3385 in other forms
| Form | Value |
|---|---|
| In words | three thousand three hundred and eighty-five |
| Roman numerals | MMMCCCLXXXV |
| Binary (base 2) | 110100111001 |
| Octal (base 8) | 6471 |
| Hexadecimal (base 16) | D39 |
| Base 3 | 11122101 |
| As time | 3385 seconds = 56 min 25 s |
Is 3385 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 | Yes (3385 ÷ 5 = 677) | 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 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 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 3385 a prime number?
No. 3385 = 5 × 677, so it is divisible by 5.
What are the factors of 3385?
1, 5, 677, 3385.
What is 3385 in binary?
110100111001 (hexadecimal D39, octal 6471).
What is the square root of 3385?
About 58.1808.
What is 3385 in Roman numerals?
MMMCCCLXXXV.
Is 3385 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 3385?
3385 is a semiprime: 5 × 677, the product of two primes.