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22 수학 과학 기타 둘러보기 메뉴eheh문서를 완성해

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정수


수 목록정수2123자연수












22




위키백과, 우리 모두의 백과사전.






둘러보기로 가기
검색하러 가기














































21 ← 22 → 23


← 20 21 22 23 24 25 26 27 28 29 →



← 0 10 20 30 40 50 60 70 80 90 →

읽는 법
이십이
세는 법
스물둘
한자
二十二
소인수 분해
2 × 11
로마 숫자
XXII
2진수
101102
3진수
2113
4진수
1124
5진수
425
6진수
346
8진수
268
12진수
1A12
16진수
1616
20진수
1220
36진수
M36
φ(22)
10
σ*(22)
36

d(22)

4
σ(22)
36
μ(22)
1

M(22)

-1

수 목록 · 정수


v • d • e • h

22(이십이)는 21보다 크고 23보다 작은 자연수이다.



수학



  • 합성수로, 그 약수는 1, 2, 11, 22이다.

  • 4번째 오각수이다.

  • 2번째 쌍둥이 수이다.


과학



  • 타이타늄(Ti)의 원자번호.


기타



  • KBO 리그에서 주로 포수의 등번호로 사용되고 있다. 과거 해태 타이거즈의 전성기를 이끌었던 포수 장채근(86년에는 50번), 최해식이 이 번호를 사용하였고, 삼성 라이온즈의 이만수 선수가 이 번호를 달고 뛰었다. 삼성 라이온즈에서는 22번이 이만수의 번호로 영구 결번 처리(이후 SK 코칭스태프로 활동하면서 22번을 달고 있다.)되어 진갑용 선수가 99년 시즌 중 삼성으로 이적한 뒤 2번을 달았다가 다음 해부터 20번을 달게 되었다.


  • 수도권 전철의 노선의 개수는 현재 22개 노선이다. (1~9호선, 분당선, 중앙선, 경의선, 경춘선, 공항철도, 1, 2호선, 신분당선, 수인선, 의정부 경전철, 용인 경전철, 경강선, 수서고속철도)







원본 주소 "https://ko.wikipedia.org/w/index.php?title=22&oldid=23421029"










둘러보기 메뉴


























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155 수학 과학 기타 둘러보기 메뉴eh추가해eh문서를 완성해

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