Compare 639961 vs 640021

Property	639961	640021
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	7¹ × 91423¹	23¹ × 27827¹
Prime factorization	7 × 91423	23 × 27827
Divisors count	4	4
Divisors	1, 7, 91423, 639961	1, 23, 27827, 640021
Number of properties	1	1
Semiprimes	137137th	137148th
Roman numberals
Base 2	10011100001111011001₂	10011100010000010101₂
Base 3	1012111212021₃	1012111221111₃
Base 4	2130033121₄	2130100111₄
Base 5	130434321₅	130440041₅
Base 6	21414441₆	21415021₆
Base 7	5303530₇	5303644₇
Base 8	2341731₈	2342025₈
Base 9	1174767₉	1174844₉
Base 10	639961₁₀	640021₁₀
Base 11	3a78a3₁₁	3a7948₁₁
Base 12	26a421₁₂	26a471₁₂
Base 13	19539a₁₃	195415₁₃
Base 14	129317₁₄	12935b₁₄
Base 15	c9941₁₅	c9981₁₅
Base 16	9c3d9₁₆	9c415₁₆