Compare 642013 vs 642021

Property	642013	642021
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	642013¹	3¹ × 214007¹
Prime factorization	642013	3 × 214007
Divisors count	2	4
Divisors	1, 642013	1, 3, 214007, 642021
Number of properties	2	1
Primes	52224th
Semiprimes		137555th
Twin primes (2nd member)	5647th
Roman numberals
Base 2	10011100101111011101₂	10011100101111100101₂
Base 3	1012121200021₃	1012121200120₃
Base 4	2130233131₄	2130233211₄
Base 5	131021023₅	131021041₅
Base 6	21432141₆	21432153₆
Base 7	5312521₇	5312532₇
Base 8	2345735₈	2345745₈
Base 9	1177607₉	1177616₉
Base 10	642013₁₀	642021₁₀
Base 11	3a9399₁₁	3a93a6₁₁
Base 12	26b651₁₂	26b659₁₂
Base 13	1962b8₁₃	1962c3₁₃
Base 14	129d81₁₄	129d89₁₄
Base 15	ca35d₁₅	ca366₁₅
Base 16	9cbdd₁₆	9cbe5₁₆