Base | Representation |
---|---|
bin | 101000111001011111… |
… | …1110101100001111110 |
3 | 22101200221011100222200 |
4 | 1101302333311201332 |
5 | 2414333120323003 |
6 | 104203053252330 |
7 | 6226322325636 |
oct | 1216277654176 |
9 | 271627140880 |
10 | 87828682878 |
11 | 34280002432 |
12 | 150317940a6 |
13 | 8389024251 |
14 | 43727a96c6 |
15 | 24409286a3 |
hex | 1472ff587e |
87828682878 has 48 divisors (see below), whose sum is σ = 198597069216. Its totient is φ = 27999417600.
The previous prime is 87828682873. The next prime is 87828682961.
87828682878 is nontrivially palindromic in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87828682873) 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, 4876626 + ... + 4894602.
It is an arithmetic number, because the mean of its divisors is an integer number (4137438942).
Almost surely, 287828682878 is an apocalyptic number.
87828682878 is an abundant number, since it is smaller than the sum of its proper divisors (110768386338).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87828682878 is a wasteful number, since it uses less digits than its factorization.
87828682878 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29809 (or 29806 counting only the distinct ones).
The product of its digits is 308281344, while the sum is 72.
The spelling of 87828682878 in words is "eighty-seven billion, eight hundred twenty-eight million, six hundred eighty-two thousand, eight hundred seventy-eight".
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