Compare 640720 vs 640729

Property	640720	640729
Type	composite number	semiprime
Unique factors	3	2
Total factors	6	2
Prime factorization	2⁴ × 5¹ × 8009¹	37¹ × 17317¹
Prime factorization	2 × 2 × 2 × 2 × 5 × 8009	37 × 17317
Divisors count	20	4
Divisors	1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8009, 16018, 32036, 40045, 64072, 80090, 128144, 160180, 320360, 640720	1, 37, 17317, 640729
Number of properties	0	1
Semiprimes		137294th
Roman numberals
Base 2	10011100011011010000₂	10011100011011011001₂
Base 3	1012112220101₃	1012112220201₃
Base 4	2130123100₄	2130123121₄
Base 5	131000340₅	131000404₅
Base 6	21422144₆	21422201₆
Base 7	5305663₇	5306005₇
Base 8	2343320₈	2343331₈
Base 9	1175811₉	1175821₉
Base 10	640720₁₀	640729₁₀
Base 11	3a8423₁₁	3a8431₁₁
Base 12	26a954₁₂	26a961₁₂
Base 13	195832₁₃	19583b₁₃
Base 14	1296da₁₄	129705₁₄
Base 15	c9c9a₁₅	c9ca4₁₅
Base 16	9c6d0₁₆	9c6d9₁₆