The number 58987
58987 is a composite number with 4 divisors. Its prime factorisation is 61 × 967. Divisors (4): 1, 61, 967, 58987.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 58987: a semiprime: 61 × 967, the product of two primes.
- 2
58987 is composite. Its prime factorisation is
- 3
The divisors add up to 60016; without 58987 itself that is 1029, so 58987 is deficient (1029 is less than 58987). Euler's totient φ(58987) = 57960 numbers up to 58987 share no factor with it.
- 4
The digits of 58987 add up to 37, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 166 steps to reach 1.
LaTeX source of the formulas on this page
\[ 58987 = 61 \times 967 \]
58987 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 60016 |
| Euler totient φ(n) | 57960 |
| Square | 3479466169 |
| Cube | 205243270910803 |
| Square root | 242.872394 |
| Digit sum / digital root | 37 / 1 |
| Collatz steps to 1 | 166 |
| Scientific notation | 5.8987 × |
58987 in other forms
| Form | Value |
|---|---|
| In words | fifty-eight thousand nine hundred and eighty-seven |
| Binary (base 2) | 1110011001101011 |
| Octal (base 8) | 163153 |
| Hexadecimal (base 16) | E66B |
| Base 3 | 2222220201 |
| As time | 58987 seconds = 16 h 23 min 7 s |
Is 58987 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 5) | 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 1) | 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 5) | 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 58987 a prime number?
No. 58987 = 61 × 967, so it is divisible by 61.
What are the factors of 58987?
1, 61, 967, 58987.
What is 58987 in binary?
1110011001101011 (hexadecimal E66B, octal 163153).
What is the square root of 58987?
About 242.8724.
Is 58987 divisible by 3?
No. Its digits add up to 37, which is not a multiple of 3.
What is special about the number 58987?
58987 is a semiprime: 61 × 967, the product of two primes.