Compare 642157 vs 642166

Property	642157	642166
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	642157¹	2¹ × 7¹ × 45869¹
Prime factorization	642157	2 × 7 × 45869
Divisors count	2	8
Divisors	1, 642157	1, 2, 7, 14, 45869, 91738, 321083, 642166
Number of properties	5	0
Isolated primes	40937th
Primes	52234th
Sexy primes (1st member)	11317th
Sexy primes (2nd member)	11316th
Sexy prime triplets (2nd member)	2075th
Roman numberals
Base 2	10011100110001101101₂	10011100110001110110₂
Base 3	1012121212121₃	1012121212221₃
Base 4	2130301231₄	2130301312₄
Base 5	131022112₅	131022131₅
Base 6	21432541₆	21432554₆
Base 7	5313115₇	5313130₇
Base 8	2346155₈	2346166₈
Base 9	1177777₉	1177787₉
Base 10	642157₁₀	642166₁₀
Base 11	3a950a₁₁	3a9518₁₁
Base 12	26b751₁₂	26b75a₁₂
Base 13	196399₁₃	1963a5₁₃
Base 14	12a045₁₄	12a050₁₄
Base 15	ca407₁₅	ca411₁₅
Base 16	9cc6d₁₆	9cc76₁₆