The number 3490
3490 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 349. Divisors (8): 1, 2, 5, 10, 349, 698, 1745, 3490.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
3490 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
3490 is composite. Its prime factorisation is
- 3
The divisors add up to 6300; without 3490 itself that is 2810, so 3490 is deficient (2810 is less than 3490). Euler's totient φ(3490) = 1392 numbers up to 3490 share no factor with it.
- 4
The digits of 3490 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 149 steps to reach 1.
LaTeX source of the formulas on this page
\[ 3490 = 2 \times 5 \times 349 \]
3490 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 6300 |
| Euler totient φ(n) | 1392 |
| Square | 12180100 |
| Cube | 42508549000 |
| Square root | 59.076222 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 149 |
| Scientific notation | 3.49 × |
3490 in other forms
| Form | Value |
|---|---|
| In words | three thousand four hundred and ninety |
| Roman numerals | MMMCDXC |
| Binary (base 2) | 110110100010 |
| Octal (base 8) | 6642 |
| Hexadecimal (base 16) | DA2 |
| Base 3 | 11210021 |
| As time | 3490 seconds = 58 min 10 s |
Is 3490 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (3490 ÷ 2 = 1745) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (3490 ÷ 5 = 698) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (3490 ÷ 10 = 349) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 3490 a prime number?
No. 3490 = 2 × 5 × 349, so it is divisible by 2.
What are the factors of 3490?
1, 2, 5, 10, 349, 698, 1745, 3490.
What is 3490 in binary?
110110100010 (hexadecimal DA2, octal 6642).
What is the square root of 3490?
About 59.0762.
What is 3490 in Roman numerals?
MMMCDXC.
Is 3490 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 3490?
It is a composite number with 8 divisors.