1409

1409
읽는 법천사백구
세는 법천사백아홉
한자千四百九
소인수 분해소수
약수1, 1409
로마 숫자MCDIX
2진수101100000012
3진수12210123
4진수1120014
5진수211145
6진수103056
8진수26018
12진수99512
16진수58116
20진수3A920
36진수13536
s(1409)1 (부족수)
수 목록 · 정수

1409(천사백구)는 1408보다 크고 1410보다 작은 자연수다.

수학

  • 223번째 소수(素數)다. 앞의 소수는 1399, 다음 소수는 1423이다.
  • 피타고라스 삼조빗변의 길이이다. ()[a]
    • 서로 다른 두 자연수의 제곱합으로 나타낼 수 있는 수다.
  • 은 1409로 나누어떨어진다.

과학·기술

문화유산

기타

같이 보기

각주

  1. 25,281 + 1,960,000 = 1,985,281

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