279

278 ← 279 → 280
읽는 법이백칠십구
세는 법이백일흔아홉
한자二百七十九
소인수 분해32× 31
로마 숫자CCLXXIX
2진수1000101112
3진수1011003
4진수101134
5진수21045
6진수11436
8진수4278
12진수1B312
16진수11716
20진수DJ20
36진수7R36
φ(279)180
σ*(279)320
d(279)6
σ(279)416
μ(279)0
M(279)5
수 목록 · 정수

279(이백칠십구)는 278보다 크고 280보다 작은 자연수다.

수학

  • 합성수로, 그 약수1, 3, 9, 31, 93, 279다. 진약수의 합137이므로, 279는 부족수다.
    • 연속하는 세 오각수으로 나타낼 수 있는 수다. 이 성질을 지닌 앞의 수는 213, 다음 수는 354다.
  • 은 279로 나누어떨어진다.

과학

교통

군사

문화유산

방송

기타

각주

  1. “2.79 m cake pyramid”. 《www.guinnessworldrecords.com》. 
  2. “279 people breaking roof tiles”. 《www.guinnessworldrecords.com》. 

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