Base | Representation |
---|---|
bin | 1010010111110… |
… | …01011001000010 |
3 | 20001201022001201 |
4 | 11023321121002 |
5 | 134233122423 |
6 | 12344451414 |
7 | 2104346062 |
oct | 513713102 |
9 | 201638051 |
10 | 87004738 |
11 | 45125a47 |
12 | 25179b6a |
13 | 150437c2 |
14 | b7ab3a2 |
15 | 79892ad |
hex | 52f9642 |
87004738 has 16 divisors (see below), whose sum is σ = 134012736. Its totient is φ = 42341040.
The previous prime is 87004717. The next prime is 87004739. The reversal of 87004738 is 83740078.
It is a junction number, because it is equal to n+sod(n) for n = 87004697 and 87004706.
It is not an unprimeable number, because it can be changed into a prime (87004739) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25120 + ... + 28372.
It is an arithmetic number, because the mean of its divisors is an integer number (8375796).
Almost surely, 287004738 is an apocalyptic number.
87004738 is a deficient number, since it is larger than the sum of its proper divisors (47007998).
87004738 is a wasteful number, since it uses less digits than its factorization.
87004738 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3609.
The product of its (nonzero) digits is 37632, while the sum is 37.
The square root of 87004738 is about 9327.6330330904. The cubic root of 87004738 is about 443.1128058178.
The spelling of 87004738 in words is "eighty-seven million, four thousand, seven hundred thirty-eight".
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