Base | Representation |
---|---|
bin | 1111110001010… |
… | …00101010000001 |
3 | 100012220212210102 |
4 | 13320220222001 |
5 | 232331141410 |
6 | 21043212145 |
7 | 3164264456 |
oct | 770505201 |
9 | 305825712 |
10 | 132287105 |
11 | 68744295 |
12 | 38377055 |
13 | 215397c2 |
14 | 137d782d |
15 | b9312a5 |
hex | 7e28a81 |
132287105 has 4 divisors (see below), whose sum is σ = 158744532. Its totient is φ = 105829680.
The previous prime is 132287039. The next prime is 132287107. The reversal of 132287105 is 501782231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501782231 = 41 ⋅12238591.
It can be written as a sum of positive squares in 2 ways, for example, as 18395521 + 113891584 = 4289^2 + 10672^2 .
It is not a de Polignac number, because 132287105 - 28 = 132286849 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (132287107) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13228706 + ... + 13228715.
It is an arithmetic number, because the mean of its divisors is an integer number (39686133).
Almost surely, 2132287105 is an apocalyptic number.
It is an amenable number.
132287105 is a deficient number, since it is larger than the sum of its proper divisors (26457427).
132287105 is an equidigital number, since it uses as much as digits as its factorization.
132287105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26457426.
The product of its (nonzero) digits is 3360, while the sum is 29.
The square root of 132287105 is about 11501.6131477285. The cubic root of 132287105 is about 509.5332202232.
The spelling of 132287105 in words is "one hundred thirty-two million, two hundred eighty-seven thousand, one hundred five".
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