Compare 642001 vs 642011

Property	642001	642011
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	401¹ × 1601¹	642011¹
Prime factorization	401 × 1601	642011
Divisors count	4	2
Divisors	1, 401, 1601, 642001	1, 642011
Number of properties	1	4
Chen primes		20430th
Primes		52223rd
Semiprimes	137550th
Super primes		5339th
Twin primes (1st member)		5647th
Roman numberals
Base 2	10011100101111010001₂	10011100101111011011₂
Base 3	1012121122211₃	1012121200012₃
Base 4	2130233101₄	2130233123₄
Base 5	131021001₅	131021021₅
Base 6	21432121₆	21432135₆
Base 7	5312503₇	5312516₇
Base 8	2345721₈	2345733₈
Base 9	1177584₉	1177605₉
Base 10	642001₁₀	642011₁₀
Base 11	3a9388₁₁	3a9397₁₁
Base 12	26b641₁₂	26b64b₁₂
Base 13	1962a9₁₃	1962b6₁₃
Base 14	129d73₁₄	129d7d₁₄
Base 15	ca351₁₅	ca35b₁₅
Base 16	9cbd1₁₆	9cbdb₁₆