Numbers 47,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

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47,000

[EECS]  47K(W) is one of standard numerical values for resistors (of tolerance class 5%). 47,000mF (microfarads) is one of standard numerical values for capacitors.

 

47,016

[Math.]  Two multiples of number 5877, 5877×5 = 29,385 and 5877×8 = 47,016, use each of 10 digits 0-9 once. Same as its two multiples, 5877×9 = 52,893 and 5877×8 = 47,016. 

 

47,035 & 49030

[Language]  The Kangxi Zidian dictionary, published in 1716 contains 47035 Chinese characters, plus 1995 graphic variants, totally 49,030 different characters, which are grouped under 214 radicals. (To be verified).

 

47,130

[Math.]  Two multiples of number 9426, 9426×5 = 47,130 and 9426×7 = 65,982, use each of 10 digits 0-9 once.

 

47,136

[Math.]  The ratio 47136/5892 = 8, using each of 9 digits 1-9 once, shows how to arrange a 9-book set on 2 shelves to mark the book #8.

 

47,328

[Math.]  The ratio 47328/5916 = 8, using each of 9 digits 1-9 once, shows how to arrange a 9-book set on 2 shelves to mark the book #8.

 

47,368

[Math.]  The ratio 47368/5921 = 8, using each of 9 digits 1-9 once, shows how to arrange a 9-book set on 2 shelves to mark the book #8.

 

47,615

[Math.]  Two multiples of number 9523, 9523×4 = 38,092 and 9523×5 = 47,615, use each of 10 digits 0-9 once.

 

47,616  

[Math.]  The 2nd known amicable/sociable number chain: 14316 → 19116 → 31704 → 47616 → 83328 → 177792 → 295488 → 629072 → 589786 → 294896 → 358336 → 418904 → 366556 → 274924 → 275444 → 243760 → 376736 → 381028 → 285778 → 152990 → 122410 → 97946 → 48976 → 45946 → 22976 → 22744 → 19916 → 17716 → 14316. (of 28 links, currently the longest, found by P. Poulet, 1918)

 

47,619

[Math.]  The 6-digit period of the rational number 1/21 = 0.047619047619… or 0.047619. Multiples of 047619 by 4, 10, 13, 16 and 19 yield 5 other digit-rotations of the number itself: 190476, 476190, 619047, 761904 and 904761, respectively.

 

47,690

[Math.]  Two multiples of number 9538, 9538×4 = 38,152 and 9538×5 = 47,690, use each of 10 digits 0-9 once.

 

47,777

[Math.]  A prime number. (1 digit 4 in front of 4 digits 7). The numbers 77477 and 77747 are also prime.

 

47nnn

[Zip]  U.S. Postal Zip Codes of Indiana: 46nnn and 47nnn.