Compare 642401 vs 642407

Property	642401	642407
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	569¹ × 1129¹	642407¹
Prime factorization	569 × 1129	642407
Divisors count	4	2
Divisors	1, 569, 1129, 642401	1, 642407
Number of properties	1	6
Additive primes		20422nd
Chen primes		20437th
Cousin primes (2nd member)		5643rd
Isolated primes		40949th
Primes		52250th
Safe primes		3025th
Semiprimes	137641st
Roman numberals
Base 2	10011100110101100001₂	10011100110101100111₂
Base 3	1012122012122₃	1012122012212₃
Base 4	2130311201₄	2130311213₄
Base 5	131024101₅	131024112₅
Base 6	21434025₆	21434035₆
Base 7	5313614₇	5313623₇
Base 8	2346541₈	2346547₈
Base 9	1178178₉	1178185₉
Base 10	642401₁₀	642407₁₀
Base 11	3a9711₁₁	3a9717₁₁
Base 12	26b915₁₂	26b91b₁₂
Base 13	196526₁₃	19652c₁₃
Base 14	12a17b₁₄	12a183₁₄
Base 15	ca51b₁₅	ca522₁₅
Base 16	9cd61₁₆	9cd67₁₆