Base | Representation |
---|---|
bin | 1110001001101001111… |
… | …11001001000001001000 |
3 | 1201111000112012222121200 |
4 | 13010310333021001020 |
5 | 30431234342143223 |
6 | 1011211055504200 |
7 | 50061664055334 |
oct | 7046477110110 |
9 | 1644015188550 |
10 | 486220271688 |
11 | 178228738688 |
12 | 7a296228060 |
13 | 36b09373198 |
14 | 197670c87c4 |
15 | c9ab010a43 |
hex | 7134fc9048 |
486220271688 has 108 divisors (see below), whose sum is σ = 1354008559995. Its totient is φ = 157622060160.
The previous prime is 486220271687. The next prime is 486220271717. The reversal of 486220271688 is 886172022684.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
486220271688 is a `hidden beast` number, since 4 + 8 + 622 + 0 + 2 + 7 + 1 + 6 + 8 + 8 = 666.
It can be written as a sum of positive squares in 5 ways, for example, as 475628156964 + 10592114724 = 689658^2 + 102918^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=493062.
It is not an unprimeable number, because it can be changed into a prime (486220271687) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 218918418 + ... + 218920638.
Almost surely, 2486220271688 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 486220271688
486220271688 is an abundant number, since it is smaller than the sum of its proper divisors (867788288307).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
486220271688 is an equidigital number, since it uses as much as digits as its factorization.
486220271688 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4528 (or 2263 counting only the distinct ones).
The product of its (nonzero) digits is 4128768, while the sum is 54.
The spelling of 486220271688 in words is "four hundred eighty-six billion, two hundred twenty million, two hundred seventy-one thousand, six hundred eighty-eight".
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