Base | Representation |
---|---|
bin | 1110001011001010010… |
… | …00110111100111101111 |
3 | 1201120002211100100110200 |
4 | 13011211020313213233 |
5 | 30434413200100424 |
6 | 1011423155004543 |
7 | 50121003533262 |
oct | 7054510674757 |
9 | 1646084310420 |
10 | 487028128239 |
11 | 178602755224 |
12 | 7a480899753 |
13 | 36c07847103 |
14 | 198024dacd9 |
15 | ca06dda8c9 |
hex | 71652379ef |
487028128239 has 24 divisors (see below), whose sum is σ = 740538380400. Its totient is φ = 307585175040.
The previous prime is 487028128231. The next prime is 487028128243. The reversal of 487028128239 is 932821820784.
487028128239 is a `hidden beast` number, since 4 + 87 + 0 + 281 + 282 + 3 + 9 = 666.
It is not a de Polignac number, because 487028128239 - 23 = 487028128231 is a prime.
It is a super-2 number, since 2×4870281282392 (a number of 24 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487028128231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8722069 + ... + 8777729.
It is an arithmetic number, because the mean of its divisors is an integer number (30855765850).
Almost surely, 2487028128239 is an apocalyptic number.
487028128239 is a deficient number, since it is larger than the sum of its proper divisors (253510252161).
487028128239 is a wasteful number, since it uses less digits than its factorization.
487028128239 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 106855 (or 106852 counting only the distinct ones).
The product of its (nonzero) digits is 3096576, while the sum is 54.
The spelling of 487028128239 in words is "four hundred eighty-seven billion, twenty-eight million, one hundred twenty-eight thousand, two hundred thirty-nine".
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