20091027, 12:26  #408 
Nov 2008
2·3^{3}·43 Posts 

20091027, 12:50  #409 
I quite division it
"Chris"
Feb 2005
England
31·67 Posts 
If you say so.
I had: "... abundant numbers with the same sum of proper divisors, 120." 
20091027, 13:25  #410  
Account Deleted
"Tim Sorbera"
Aug 2006
San Antonio, TX USA
17×251 Posts 
Quote:


20091027, 13:32  #411 
I quite division it
"Chris"
Feb 2005
England
31·67 Posts 
Okay. Stupid book!

20200925, 23:31  #412 
Jan 2020
2^{3}×3×5 Posts 
Same number is written in 2 different bases, it's a superdouble only in 1 of the 2 bases.
[dozenal] 65,Ɛ65,Ɛ00 > 5 * 7 * Ɛ * 11 * 15 * 17 * 100 [decimal] 232,792.560 > 5 * 7 * 11 * 13 * 17 * 19 * 144 
20200926, 18:16  #413 
Dec 2008
you know...around...
1116_{8} Posts 
A fun thread which deserves reviving, methinks.
Here's a number that I hope will increase during the next few years: 1432 
20200926, 23:04  #414 
"Curtis"
Feb 2005
Riverside, CA
2^{4}×3×7×13 Posts 
OK, I'll bite: How does a number increase? It's a constant, no?

20200926, 23:42  #415 
Jul 2003
wear a mask
11×131 Posts 
It's sort of like rabbits, but very dependent on the numbers involved. When a 5 meets a 5, that's boring. But when a 3 meets a 7, look out! Slap an xrating on that one and get the kids out of earshot.

20201001, 12:28  #416  
Feb 2017
Nowhere
2×5^{2}×71 Posts 
Quote:
I did find a mention that it was the number of known hazardous asteroids some time ago, but I don't think that's it. I came up with the following number when musing about a recent announcement: 20287 

20201001, 18:14  #417  
Dec 2008
you know...around...
2×5×59 Posts 
Quote:
Quote:
Here's a hint: in what subsection of the forum am I most active? As for 20287, that's also a tough one. 2292^{nd} prime number, 2^{6}*3171, B8A7 in base 12, can't see anything related to DJT either... 

20201001, 18:39  #418  
Feb 2017
Nowhere
2·5^{2}·71 Posts 
Quote:
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