834910 = 20021314
To find that, start dividing 8349 by 4, over and over again, rounding down, and write the remainders down in reverse order, until you get to a quotient of zero.
Another way, which is actually what I did, is to use the Windows Calculator in scientific mode and convert 834910 into 100000100111012. Since 4 is a power of 2, you can use the trick of grouping the bits. This gives you 10 00 00 10 01 11 01, and by inspection you can see that the answer is 2002131.
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32 base 4
Base = x + 4 Altitude = 4*base = 4*(x+4) Area = 0.5*base*altitude = 0.5*(x+4)*4*(x+4) = 2*(x+4)2
121 in base 4 = 16 + 8 + 1 (base ten) = 2584 in base 16 = 128 + 4 (base ten) = 132132 + 25 = 157(base 10) = 9D (base 16) = 2131 (base 4)
4 x 4 = 31 in base 5
4 is the base, 3 is the exponent. Answer = 4 to power 3 = 64