The number 29490
29490 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 5 × 983. Divisors (16): 1, 2, 3, 5, 6, 10, 15, 30, 983, 1966, 2949, 4915, 5898, 9830, 14745, 29490.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
29490 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
29490 is composite. Its prime factorisation is
- 3
The divisors add up to 70848; without 29490 itself that is 41358, so 29490 is abundant (41358 is more than 29490). Euler's totient φ(29490) = 7856 numbers up to 29490 share no factor with it.
- 4
The digits of 29490 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 46 steps to reach 1.
LaTeX source of the formulas on this page
\[ 29490 = 2 \times 3 \times 5 \times 983 \]
29490 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 70848 |
| Euler totient φ(n) | 7856 |
| Square | 869660100 |
| Cube | 25646276349000 |
| Square root | 171.726527 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 46 |
| Scientific notation | 2.949 × |
29490 in other forms
| Form | Value |
|---|---|
| In words | twenty-nine thousand four hundred and ninety |
| Binary (base 2) | 111001100110010 |
| Octal (base 8) | 71462 |
| Hexadecimal (base 16) | 7332 |
| Base 3 | 1111110020 |
| As time | 29490 seconds = 8 h 11 min 30 s |
Is 29490 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (29490 ÷ 2 = 14745) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (29490 ÷ 3 = 9830) | 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 (29490 ÷ 5 = 5898) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (29490 ÷ 6 = 4915) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (29490 ÷ 10 = 2949) | 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 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 29490 a prime number?
No. 29490 = 2 × 3 × 5 × 983, so it is divisible by 2.
What are the factors of 29490?
1, 2, 3, 5, 6, 10, 15, 30, 983, 1966, 2949, 4915, 5898, 9830, 14745, 29490.
What is 29490 in binary?
111001100110010 (hexadecimal 7332, octal 71462).
What is the square root of 29490?
About 171.7265.
Is 29490 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 29490?
It is a composite number with 16 divisors.