684

683 ← 684 → 685
읽는 법육백팔십사
세는 법육백여든넷
한자六百八十四
소인수 분해22× 32× 19
로마 숫자DCLXXXIV
2진수10101011002
3진수2211003
4진수222304
5진수102145
6진수31006
8진수12548
12진수49012
16진수2AC16
20진수1E420
36진수J036
수 목록 · 정수

684(육백팔십사)는 683보다 크고 685보다 작은 자연수다.

수학

  • 합성수로, 그 약수는 총 18개다. (1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684)
    • 연속하는 세 자연수의 세제곱합으로 나타낼 수 있으며, 이 성질을 지닌 앞의 수는 405, 다음 수는 1071이다.
  • 은 684로 나누어떨어진다.

과학

교통

항공

도로

군사

문화유산

기타

각주

  1. 국보 제328호로 승격되었다.

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