Base | Representation |
---|---|
bin | 101000111101111000… |
… | …1001101011011100000 |
3 | 22102002012001220111000 |
4 | 1101323301031123200 |
5 | 2420133303443202 |
6 | 104225431352000 |
7 | 6233060221542 |
oct | 1217361153340 |
9 | 272065056430 |
10 | 87975843552 |
11 | 34346085423 |
12 | 15072b22600 |
13 | 83b066a97c |
14 | 4388155692 |
15 | 244d7e691c |
hex | 147bc4d6e0 |
87975843552 has 48 divisors (see below), whose sum is σ = 256596212880. Its totient is φ = 29325280896.
The previous prime is 87975843551. The next prime is 87975843559. The reversal of 87975843552 is 25534857978.
87975843552 is a `hidden beast` number, since 8 + 7 + 9 + 75 + 8 + 4 + 3 + 552 = 666.
It is a tau number, because it is divible by the number of its divisors (48).
It is a self number, because there is not a number n which added to its sum of digits gives 87975843552.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87975843551) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50911083 + ... + 50912810.
It is an arithmetic number, because the mean of its divisors is an integer number (5345754435).
Almost surely, 287975843552 is an apocalyptic number.
It is an amenable number.
87975843552 is an abundant number, since it is smaller than the sum of its proper divisors (168620369328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87975843552 is a wasteful number, since it uses less digits than its factorization.
87975843552 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 101823912 (or 101823898 counting only the distinct ones).
The product of its digits is 84672000, while the sum is 63.
The spelling of 87975843552 in words is "eighty-seven billion, nine hundred seventy-five million, eight hundred forty-three thousand, five hundred fifty-two".
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