Base | Representation |
---|---|
bin | 101000100101110100… |
… | …0010110011001010011 |
3 | 22022222220101002212000 |
4 | 1101023220112121103 |
5 | 2412010030331421 |
6 | 104013341205043 |
7 | 6204052412322 |
oct | 1211350263123 |
9 | 268886332760 |
10 | 87168214611 |
11 | 33a71203895 |
12 | 14a88560783 |
13 | 82b224651a |
14 | 430cba20b9 |
15 | 2402964226 |
hex | 144ba16653 |
87168214611 has 32 divisors (see below), whose sum is σ = 136258060800. Its totient is φ = 54922704480.
The previous prime is 87168214603. The next prime is 87168214631. The reversal of 87168214611 is 11641286178.
87168214611 is a `hidden beast` number, since 8 + 7 + 1 + 6 + 8 + 21 + 4 + 611 = 666.
It is not a de Polignac number, because 87168214611 - 23 = 87168214603 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87168214631) by changing a digit.
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 in 31 ways as a sum of consecutive naturals, for example, 14170 + ... + 417776.
It is an arithmetic number, because the mean of its divisors is an integer number (4258064400).
Almost surely, 287168214611 is an apocalyptic number.
87168214611 is a deficient number, since it is larger than the sum of its proper divisors (49089846189).
87168214611 is a wasteful number, since it uses less digits than its factorization.
87168214611 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 404056 (or 404050 counting only the distinct ones).
The product of its digits is 129024, while the sum is 45.
The spelling of 87168214611 in words is "eighty-seven billion, one hundred sixty-eight million, two hundred fourteen thousand, six hundred eleven".
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