Compare 642001 vs 642013

Property	642001	642013
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	401¹ × 1601¹	642013¹
Prime factorization	401 × 1601	642013
Divisors count	4	2
Divisors	1, 401, 1601, 642001	1, 642013
Number of properties	1	2
Primes		52224th
Semiprimes	137550th
Twin primes (2nd member)		5647th
Roman numberals
Base 2	10011100101111010001₂	10011100101111011101₂
Base 3	1012121122211₃	1012121200021₃
Base 4	2130233101₄	2130233131₄
Base 5	131021001₅	131021023₅
Base 6	21432121₆	21432141₆
Base 7	5312503₇	5312521₇
Base 8	2345721₈	2345735₈
Base 9	1177584₉	1177607₉
Base 10	642001₁₀	642013₁₀
Base 11	3a9388₁₁	3a9399₁₁
Base 12	26b641₁₂	26b651₁₂
Base 13	1962a9₁₃	1962b8₁₃
Base 14	129d73₁₄	129d81₁₄
Base 15	ca351₁₅	ca35d₁₅
Base 16	9cbd1₁₆	9cbdd₁₆