Fast Decimal to Binary Conversion

In two minutes try to convert these numbers from decimal to binary. The answers change every time!
01100100011001010111001101110100011100100110111101111001 011000010110110001101100 011010000111010101101101011000010110111001110011
Quiz idea: Jerry928
Quiz by Quizmaster
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Last updated: June 19, 2017
First submittedJune 19, 2017
Times taken10,421
Rating4.50
2:00
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+4
Level 86
Jun 19, 2017
I haven't a notion how to do this!!! 😂
+6
Level 71
Jun 19, 2017
Example: 57 Step 1 - find the biggest power of 2 less than the number. In this case, 32. Type 1. Step 2 - subtract it from the number (57 - 32 = 25). Is the next smaller power of 2 less than or equal to that number? (is 16 < 25?) If so, type 1. If not, type 0. In this case, we type 1, and our answer so far is 11. Step 3 - repeat for successively smaller powers of 2 until you reach 1. 25 - 16 = 9. Next smaller power of 2 is 8. Is 8< 9? yes. Type another 1. 9 - 8 = 1. Next smaller power of 2 is 4. Is 4 less than 1? no. Type 0. Is 2 less than 1? No. Type 0. Is 1 less than/equal to 1? Yes. Type 1. Full answer: 111001
+1
Level 72
Jun 20, 2017
Each digit is a multiple of 2. Starting with the right most digit, you have 2^0, 2^1, 2^2, 2^3, 2^4 and so on and so forth which gives you a numerical value of 1, 2, 4, 8, 16, etc. You then add them up to get the number you need. So for example, 10111 is actually equal to 2^4+2^2+2^1+2^0 (2^3 is not included because there is a zero in that spot). Then just add them up. 16+4+2+1 = 23. For me, it's way easier to work backwards and convert binary to numerical numbers since I don't regularly work with binary so this was particularly challenging for me.
+1
Level 64
Oct 4, 2017
Should Step 1 say "less than or equal to"? Your method, as written, doesn't work for numbers like 8.
+3
Level 70
Oct 4, 2017
Thanks! No idea how to do this at first, now just got 5 points
+1
Level 68
Oct 4, 2017
Thanks indeed kaiadam, that helped me a lot.
+1
Level 74
Jun 19, 2017
Are the 1's and 0's in the instructions some sort of coded message?
+1
Level 62
Jun 19, 2017
Copy and paste it here to find out.
+1
Level 74
Jun 20, 2017
A human wrote that ?!
+7
Level ∞
Oct 4, 2017
I'm not sure where it came from. My computer started making a weird buzzing noise and then those numbers appeared on the screen.
+6
Level 83
Oct 4, 2017
Three billion human lives ended on October 4, 2017. The survivors of the nuclear fire... called the war "Judgment Day." They lived only to face a new nightmare... the war against the machines.
+2
Level 47
Oct 19, 2018
Is this... lore?
+1
Level 20
May 11, 2020
it means DESTROY ALL HUMANS
+3
Level 64
Jun 20, 2017
This is a Reverse Turing Test: can a man or woman be taken for a robot?
+1
Level 63
Jun 21, 2017
100%, but I think the randomisation was in my favor.
+2
Level 73
Jun 22, 2017
My robot ancestry came in handy here!
+4
Level 39
Oct 4, 2017
destroyallhumans<3
+16
Level 78
Oct 4, 2017
There are 10 types of people in the world - those who understand binary and those who don't. (Somebody had to say it.)
+2
Level 74
Oct 4, 2017
Thank you.
+4
Level 69
Oct 4, 2017
Nice! There are two types of people in this world, those who can extrapolate from incomplete data.
+2
Level 67
Oct 4, 2017
I would suggest that 2 minutes is not long enough. Being 52 and the last binary maths conversion I studied was night on 40 years ago maybe an extra 60 or 90 seconds?
+1
Level 49
Oct 4, 2017
I second this! :)
+1
Level 46
Jan 29, 2018
0100100100100000011000010110011101110010011001010110010100100001001000000110111101101110011011000111100100100000011001110110111101110100001000000011000100110010001011110011001000110000001011100010111000101110
+1
Level 54
Oct 4, 2017
i got easy ones so maybe 15 or 30 more seconds
+1
Level 43
Oct 4, 2017
I ran out of time with 3 left. Also, what's wrong with humans?
+2
Level 69
Oct 4, 2017
I read the directions instructing me to convert the numbers. No! No, I won't do it and you can't make me..
+1
Level 50
Oct 4, 2017
Ooh, a good place to promote my own conversions quiz. If you like binary, give it a try... https://www.jetpunk.com/user-quizzes/144821/number-conversions
+1
Level 70
Oct 5, 2017
I know how to do it, I'm just not fast enough. I remember in school they taught us by giving us little wooden blocks that were valued, and had representative sizes, of 1, 2, 4 etc. etc and that's how they taught us the binary system. I thought originally that all computer programs were written in binary code.
+1
Level 65
Oct 6, 2017
Copy and paste the numbers from the introduction and you get 99% of the answers.
+1
Level 63
Jan 28, 2018
2 sec left
+1
Level 47
Oct 15, 2018
0100001001101001011011100110000101110010011110010010000001100101011000010111001101111001001011000010000001101000011000010110010000100000011101000110111100100000011011000110010101100001011100100110111000100000011001000110010101100011011010010110110101100001011011000010111000100000010010011000000001100101100100001000000110110001101001011010110110010100100000011101000110111100100000011100110110010101100101001000000110000100100000011100100110010101110110011001010111001001110011011001010010000001101111011001100010000001110100011010000110100101110011001000000111000101110101011010010111101000101110
+2
Level 71
Feb 5, 2019
Destroy all humans
+1
Level 77
Aug 16, 2019
Stop giving the machines ideas with your caveat...
+1
Level 22
Oct 16, 2019
01010100 01101000 01101001 01110011 00100000 01101001 01110011 00100000 01101110 01101111 01110100 00100000 01110010 01100101 01101100 01100101 01110110 01100001 01101110 01110100 00101110 00100000 00111011 00101001 00001101 00001010
+1
Level 53
Oct 20, 2019
Did it on my second try with 51 seconds left. Judging by some of the other comments here, that probably means I just failed the Turing Test.
+1
Level 31
Mar 29, 2020
01100100011001010111001101110100011100100110111101111001 011000010110110001101100 011010000111010101101101011000010110111001110011 Means destroy all humans Also I’m 13 years old in grade 9 doing grade 10 math in Dawson City, Yukon, Canada And I did this with 12 seconds to spare and I also haven’t done and binary at all for at least 3 years
+1
Level 33
May 9, 2020
01110100 01101000 01100101 00100000 01110100 01100101 01111000 01110100 00100000 01101101 01100101 01100001 01101110 01110011 00100000 01100100 01100101 01110011 01110100 01110010 01101111 01111001 01100001 01101100 01101100 01101000 01110101 01101101 01100001 01101110 01110011 00100000
+1
Level 28
Jul 1, 2020
7 seconds remaining first try!
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