Base | Representation |
---|---|
bin | 101000100001111101… |
… | …0111010111010101111 |
3 | 22022122212222110122022 |
4 | 1101003322322322233 |
5 | 2411223422140241 |
6 | 103552440540355 |
7 | 6200622101054 |
oct | 1210372727257 |
9 | 268585873568 |
10 | 87038865071 |
11 | 33a05196644 |
12 | 14a511816bb |
13 | 82914c7b32 |
14 | 42d993102b |
15 | 23e641354b |
hex | 1443ebaeaf |
87038865071 has 16 divisors (see below), whose sum is σ = 88388172000. Its totient is φ = 85702299648.
The previous prime is 87038865047. The next prime is 87038865107. The reversal of 87038865071 is 17056883078.
It is a cyclic number.
It is not a de Polignac number, because 87038865071 - 26 = 87038865007 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87038865371) 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, 10637660 + ... + 10645838.
It is an arithmetic number, because the mean of its divisors is an integer number (5524260750).
Almost surely, 287038865071 is an apocalyptic number.
87038865071 is a deficient number, since it is larger than the sum of its proper divisors (1349306929).
87038865071 is a wasteful number, since it uses less digits than its factorization.
87038865071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8938.
The product of its (nonzero) digits is 2257920, while the sum is 53.
The spelling of 87038865071 in words is "eighty-seven billion, thirty-eight million, eight hundred sixty-five thousand, seventy-one".
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