642

641 ← 642 → 643
읽는 법육백사십이
세는 법육백마흔둘
한자六百四十二
소인수 분해2 × 3 × 107
로마 숫자DCXLII
2진수10100000102
3진수2122103
4진수220024
5진수100325
6진수25506
8진수12028
12진수45612
16진수28216
20진수1C220
36진수HU36
φ(642)212
σ*(642)1296
d(642)8
σ(642)1296
μ(642)-1
M(642)-4
수 목록 · 정수

642(육백사십이)는 641보다 크고 643보다 작은 자연수다.

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