Compare 642517 vs 642520

Property	642517	642520
Type	prime	composite number
Unique factors	1	3
Total factors	1	5
Prime factorization	642517¹	2³ × 5¹ × 16063¹
Prime factorization	642517	2 × 2 × 2 × 5 × 16063
Divisors count	2	16
Divisors	1, 642517	1, 2, 4, 5, 8, 10, 20, 40, 16063, 32126, 64252, 80315, 128504, 160630, 321260, 642520
Number of properties	3	0
Isolated primes	40954th
Lucky primes	6001st
Primes	52255th
Roman numberals
Base 2	10011100110111010101₂	10011100110111011000₂
Base 3	1012122100221₃	1012122101001₃
Base 4	2130313111₄	2130313120₄
Base 5	131030032₅	131030040₅
Base 6	21434341₆	21434344₆
Base 7	5314141₇	5314144₇
Base 8	2346725₈	2346730₈
Base 9	1178327₉	1178331₉
Base 10	642517₁₀	642520₁₀
Base 11	3a9807₁₁	3a980a₁₁
Base 12	26b9b1₁₂	26b9b4₁₂
Base 13	1965b5₁₃	1965b8₁₃
Base 14	12a221₁₄	12a224₁₄
Base 15	ca597₁₅	ca59a₁₅
Base 16	9cdd5₁₆	9cdd8₁₆