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284

283 ← 284 → 285
읽는 법이백팔십사
세는 법이백여든넷
한자二百八十四
소인수 분해22× 71
로마 숫자CCLXXXIV
2진수1000111002
3진수1011123
4진수101304
5진수21145
6진수11526
8진수4348
12진수1B812
16진수11C16
20진수E420
36진수7W36
φ(284)140
σ*(284)360
d(284)6
σ(284)504
μ(284)0
M(284)2
수 목록 · 정수

284(이백팔십사)는 283보다 크고 285보다 작은 자연수이다.

수학

[편집]
  • 합성수로, 그 약수1, 2, 4, 71, 142, 284이다. (약수의 합: 504)
  • 220친화수이다. 284의 진약수를 모두 더하면 220이 되고, 반대로 220의 진약수를 모두 더하면 284가 된다.

과학

[편집]
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기타

[편집]
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284
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