Base | Representation |
---|---|
bin | 10011110010110110011011… |
… | …101111101010101001010001 |
3 | 102102020121010021110000111000 |
4 | 103302312123233222221101 |
5 | 42402321330100232140 |
6 | 505053323541012213 |
7 | 24223453114435653 |
oct | 2362663357525121 |
9 | 372217107400430 |
10 | 87057305086545 |
11 | 25814883162142 |
12 | 99203573b4069 |
13 | 39766127c2581 |
14 | 176d84b7b26d3 |
15 | a0e860eaca30 |
hex | 4f2d9bbeaa51 |
87057305086545 has 32 divisors (see below), whose sum is σ = 157305731610240. Its totient is φ = 45669405942720.
The previous prime is 87057305086513. The next prime is 87057305086547. The reversal of 87057305086545 is 54568050375078.
87057305086545 is a `hidden beast` number, since 8 + 7 + 0 + 5 + 7 + 3 + 0 + 5 + 0 + 86 + 545 = 666.
It is not a de Polignac number, because 87057305086545 - 25 = 87057305086513 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87057305086547) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5285802639 + ... + 5285819108.
It is an arithmetic number, because the mean of its divisors is an integer number (4915804112820).
Almost surely, 287057305086545 is an apocalyptic number.
It is an amenable number.
87057305086545 is a deficient number, since it is larger than the sum of its proper divisors (70248426523695).
87057305086545 is a wasteful number, since it uses less digits than its factorization.
87057305086545 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10571621822 (or 10571621816 counting only the distinct ones).
The product of its (nonzero) digits is 141120000, while the sum is 63.
The spelling of 87057305086545 in words is "eighty-seven trillion, fifty-seven billion, three hundred five million, eighty-six thousand, five hundred forty-five".
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