Counting

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GuyBarry
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Re: Counting

Post by GuyBarry »

1184 and 1210 are the second smallest pair of amicable numbers. If you add up all the divisors of 1184, including 1 but excluding the number itself, you get 1210; if you add up all the divisors of 1210, including 1 but excluding the number itself, you get 1184:

1 + 2 + 4 + 8 + 16 + 37 + 74 + 148 + 296 + 592 = 1210
1 + 2 + 5 + 10 + 11 + 22 + 55 + 110 + 121 + 242 + 605 = 1184

The smallest pair, 220 and 284, were known to the ancient Greeks, but 1184 and 1210 were overlooked until the 19th century.
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DrainBrain
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Re: Counting

Post by DrainBrain »

The fifth root of 1185 begins 4.1185...
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Re: Counting

Post by GuyBarry »

The Royal Canadian Mounted Police have reportedly uncovered 1186 cases of missing or murdered aboriginal girls and women over the past 30 years in Canada.
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Re: Counting

Post by TC95 »

1187 – safe prime, Stern prime, balanced prime

A Stern prime, named for Moritz Abraham Stern, is a prime number that is not the sum of a smaller prime and twice the square of a nonzero integer. Or, to put it algebraically, if for a prime q there is no smaller prime p and nonzero integer b such that q = p + 2b², then q is a Stern prime.
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Re: Counting

Post by DrainBrain »

Need to find something in Latvia? http://www.1188.lv is the Latvian equivalent of Yellow Pages.
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Re: Counting

Post by GuyBarry »

There are 1189 chapters in the King James Bible.
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Re: Counting

Post by TC95 »

1190 is a pronic number
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Re: Counting

Post by GuyBarry »

Item 1191 at the Toastmasters International Online Store is a "Humorous Contest Judge's Guide and Ballot" - a chart for contest judges and any speech evaluator, suggesting relative point values for humorous speech skills.
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RobbieM
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Re: Counting

Post by RobbieM »

If you were watching the skies in 1192, you might have seen Venus pass in front of Jupiter, blocking its light out. (I don't remember it myself - were any other forum members watching?)
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Re: Counting

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Figure 1193 in Henry Gray's Anatomy of the Human Body is a side view of the human head, showing surface relations of bones.
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Re: Counting

Post by DrainBrain »

In Australia, dialling 1194 gets you the speaking clock.

[Edit for random thought: in the above context, 'dialling' is already archaic.]
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Re: Counting

Post by GuyBarry »

In the online guide to Walking Britain, Walk 1195 captures many of the highlights of southern Dovedale in the Peak District National Park. Starting from near Thorpe Cloud, the walk takes the high level route, avoiding the crowds and provides dramatic views across the valley to both Derbyshire and Staffordshire.
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Re: Counting

Post by RobbieM »

Not that you'd see as far as East Lincolnshire. But if you did, you might spot the B1196 running between Alford and Gunby.
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Re: Counting

Post by The Orange One »

Switch 1197 is a radio station in Brisbane, Australia.
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Re: Counting

Post by RobbieM »

King Alexander II of Scotland was born in 1198.
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