Numbers 22,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

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22,000

[EECS]  22K(W) is one of standard numerical values for resistors (of tolerance class 5%). 22,000mF (microfarads) is one of standard numerical values for capacitors.

22,044

[Zip]  U.S. Postal Zip Code: Seven Corners, Virginia 22044.

22,111

[Sport]  Playoff series “best of seven” is usually in 2-2-1-1-1 format, where seven games are played in alternating courts, starting with the home court of the team of better record, except in the Final series, it is 2-3-2.

22,122

[Zip]  U.S. Postal Zip Code: Newington, Virginia 22122.

22,175

[Math.]  221752 = 491,730,625, a square using all 9 digits 0-9 once, except digit 8.

22220-22229

[Zip]  U.S. Postal Zip Code: Arlington, Virginia 22222, (and 22223, 22225, 22226, 22227 and 22229). Not: 22220, 22221, 22224 and 22228.

22,220

[Math.]  11,111,1113 = 1371742071330590260631

and 13+7174+2071+3305+9026+0631 = 22220

44,444,4443 = 87791492565157776680384

and 877+9149+2565+1577+7668+0384 = 22220

77,777,7773 = 470507530466392459396433

and 4705+0753+0466+3924+5939+6433 = 22220.

22,222

[Math.]  222222 = 493,817,284 = (4938+17284)2.

[Math.]  All the cubic powers 23 = 8, 223 = 10,648, 2223 = 10,941,048, 22223 = 10,970,645,048, 22,2223 = 10,973,607,685,048 and 222,2223 = 10,973,903,978,085,048 do not use digits 2.

[Math.]  21647 = 222,229,032,256,296,835,170,304.

Another example: ...

22,229

[Math.]  A prime number.  The first 5-digit prime number of only one odd digit.

22,273

[Theology]  The largest prime number found in the Bible, Numbers 3:43.

22,333

[Math.]

22333 is divisible by 23: 22333 = 23×971.

44333 is divisible by 43: 44333 = 43×1031.

555533333 is divisible by 53: 555533333 = 53×10481761.

22,456

[Math.]  224562 = 504,271,936, a square using all 9 digits 0-9 once, except digit 8.

22,744 & 22,976

[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 Poulet, 1918)

22,722

[Zip]  U.S. Postal Zip Code: Haywood, Virginia 22722.

22,887

[Math.]  228872 = 523,814,769, one of thirty 9-digit square numbers using each of 9 digits 1-9 once.

22,922

[Zip]  U.S. Postal Zip Code: Arrington, Virginia 22922.

22,976 & 22,744

[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 Poulet, 1918)

22nnn

[Zip]  U.S. Postal Zip Codes of Virginia: 22nnn-23nnn, 240nn-246nn and 201nn.