Base | Representation |
---|---|
bin | 10011110111100011001011… |
… | …110000111000111100110001 |
3 | 102110101110122200202222111000 |
4 | 103313203023300320330301 |
5 | 42423114204203321344 |
6 | 505501531444312213 |
7 | 24256004431561464 |
oct | 2367431360707461 |
9 | 373343580688430 |
10 | 87380233260849 |
11 | 25929826750121 |
12 | 9972a5b3a2669 |
13 | 399abc7852809 |
14 | 1781323a672db |
15 | a17e614dea69 |
hex | 4f78cbc38f31 |
87380233260849 has 16 divisors (see below), whose sum is σ = 132206499498240. Its totient is φ = 57014052906960.
The previous prime is 87380233260841. The next prime is 87380233260899. The reversal of 87380233260849 is 94806233208378.
It is a happy number.
It is not a de Polignac number, because 87380233260849 - 23 = 87380233260841 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (87380233260841) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34428774642 + ... + 34428777179.
It is an arithmetic number, because the mean of its divisors is an integer number (8262906218640).
Almost surely, 287380233260849 is an apocalyptic number.
It is an amenable number.
87380233260849 is a deficient number, since it is larger than the sum of its proper divisors (44826266237391).
87380233260849 is a wasteful number, since it uses less digits than its factorization.
87380233260849 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68857551877 (or 68857551871 counting only the distinct ones).
The product of its (nonzero) digits is 83607552, while the sum is 63.
The spelling of 87380233260849 in words is "eighty-seven trillion, three hundred eighty billion, two hundred thirty-three million, two hundred sixty thousand, eight hundred forty-nine".
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