The number 46729
46729 is a composite number with 4 divisors. Its prime factorisation is 83 × 563. Divisors (4): 1, 83, 563, 46729.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 46729: a semiprime: 83 × 563, the product of two primes.
- 2
46729 is composite. Its prime factorisation is
- 3
The divisors add up to 47376; without 46729 itself that is 647, so 46729 is deficient (647 is less than 46729). Euler's totient φ(46729) = 46084 numbers up to 46729 share no factor with it.
- 4
The digits of 46729 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 220 steps to reach 1.
LaTeX source of the formulas on this page
\[ 46729 = 83 \times 563 \]
46729 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 47376 |
| Euler totient φ(n) | 46084 |
| Square | 2183599441 |
| Cube | 102037418278489 |
| Square root | 216.168915 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 220 |
| Scientific notation | 4.6729 × |
46729 in other forms
| Form | Value |
|---|---|
| In words | forty-six thousand seven hundred and twenty-nine |
| Binary (base 2) | 1011011010001001 |
| Octal (base 8) | 133211 |
| Hexadecimal (base 16) | B689 |
| Base 3 | 2101002201 |
| As time | 46729 seconds = 12 h 58 min 49 s |
Is 46729 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | 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 1) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 46729 a prime number?
No. 46729 = 83 × 563, so it is divisible by 83.
What are the factors of 46729?
1, 83, 563, 46729.
What is 46729 in binary?
1011011010001001 (hexadecimal B689, octal 133211).
What is the square root of 46729?
About 216.1689.
Is 46729 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 46729?
46729 is a semiprime: 83 × 563, the product of two primes.