The number 3427
3427 is a composite number with 4 divisors. Its prime factorisation is 23 × 149. Divisors (4): 1, 23, 149, 3427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 3427: a semiprime: 23 × 149, the product of two primes.
- 2
3427 is composite. Its prime factorisation is
- 3
The divisors add up to 3600; without 3427 itself that is 173, so 3427 is deficient (173 is less than 3427). Euler's totient φ(3427) = 3256 numbers up to 3427 share no factor with it.
- 4
The digits of 3427 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 30 steps to reach 1.
LaTeX source of the formulas on this page
\[ 3427 = 23 \times 149 \]
3427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 3600 |
| Euler totient φ(n) | 3256 |
| Square | 11744329 |
| Cube | 40247815483 |
| Square root | 58.540584 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 30 |
| Scientific notation | 3.427 × |
3427 in other forms
| Form | Value |
|---|---|
| In words | three thousand four hundred and twenty-seven |
| Roman numerals | MMMCDXXVII |
| Binary (base 2) | 110101100011 |
| Octal (base 8) | 6543 |
| Hexadecimal (base 16) | D63 |
| Base 3 | 11200221 |
| As time | 3427 seconds = 57 min 7 s |
Is 3427 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 2) | 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 3) | 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 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | 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 3427 a prime number?
No. 3427 = 23 × 149, so it is divisible by 23.
What are the factors of 3427?
1, 23, 149, 3427.
What is 3427 in binary?
110101100011 (hexadecimal D63, octal 6543).
What is the square root of 3427?
About 58.5406.
What is 3427 in Roman numerals?
MMMCDXXVII.
Is 3427 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 3427?
3427 is a semiprime: 23 × 149, the product of two primes.