The number 1418
1418 is a composite number with 4 divisors. Its prime factorisation is 2 × 709. Divisors (4): 1, 2, 709, 1418.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 1418: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 709, the product of two primes.
- 2
1418 is composite. Its prime factorisation is
- 3
The divisors add up to 2130; without 1418 itself that is 712, so 1418 is deficient (712 is less than 1418). Euler's totient φ(1418) = 708 numbers up to 1418 share no factor with it.
- 4
The digits of 1418 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 34 steps to reach 1.
LaTeX source of the formulas on this page
\[ 1418 = 2 \times 709 \]
1418 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 2130 |
| Euler totient φ(n) | 708 |
| Square | 2010724 |
| Cube | 2851206632 |
| Square root | 37.656341 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 34 |
| Scientific notation | 1.418 × |
1418 in other forms
| Form | Value |
|---|---|
| In words | one thousand four hundred and eighteen |
| Roman numerals | MCDXVIII |
| Binary (base 2) | 10110001010 |
| Octal (base 8) | 2612 |
| Hexadecimal (base 16) | 58A |
| Base 3 | 1221112 |
| As time | 1418 seconds = 23 min 38 s |
Is 1418 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (1418 ÷ 2 = 709) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | 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 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 1418 a prime number?
No. 1418 = 2 × 709, so it is divisible by 2.
What are the factors of 1418?
1, 2, 709, 1418.
What is 1418 in binary?
10110001010 (hexadecimal 58A, octal 2612).
What is the square root of 1418?
About 37.6563.
What is 1418 in Roman numerals?
MCDXVIII.
Is 1418 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 1418?
1418 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 709, the product of two primes.