Base | Representation |
---|---|
bin | 101000100011010101… |
… | …1100110010010011010 |
3 | 22022210010010111212012 |
4 | 1101012223212102122 |
5 | 2411322301230213 |
6 | 104001213345522 |
7 | 6202023550142 |
oct | 1210653462232 |
9 | 268703114765 |
10 | 87085180058 |
11 | 33a2934a798 |
12 | 14a647982a2 |
13 | 829ac92b56 |
14 | 4301b49922 |
15 | 23ea5114a8 |
hex | 1446ae649a |
87085180058 has 4 divisors (see below), whose sum is σ = 130627770090. Its totient is φ = 43542590028.
The previous prime is 87085180031. The next prime is 87085180081. The reversal of 87085180058 is 85008158078.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85008158078 = 2 ⋅42504079039.
It can be written as a sum of positive squares in only one way, i.e., 49300429369 + 37784750689 = 222037^2 + 194383^2 .
It is a junction number, because it is equal to n+sod(n) for n = 87085179988 and 87085180015.
It is an unprimeable number.
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 as a sum of consecutive naturals, namely, 21771295013 + ... + 21771295016.
Almost surely, 287085180058 is an apocalyptic number.
87085180058 is a deficient number, since it is larger than the sum of its proper divisors (43542590032).
87085180058 is a wasteful number, since it uses less digits than its factorization.
87085180058 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43542590031.
The product of its (nonzero) digits is 716800, while the sum is 50.
The spelling of 87085180058 in words is "eighty-seven billion, eighty-five million, one hundred eighty thousand, fifty-eight".
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