Compare 642281 vs 642287

Property	642281	642287
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	642281¹	157¹ × 4091¹
Prime factorization	642281	157 × 4091
Divisors count	2	4
Divisors	1, 642281	1, 157, 4091, 642287
Number of properties	4	1
Additive primes	20419th
Chen primes	20435th
Isolated primes	40946th
Primes	52245th
Semiprimes		137611th
Roman numberals
Base 2	10011100110011101001₂	10011100110011101111₂
Base 3	1012122001012₃	1012122001102₃
Base 4	2130303221₄	2130303233₄
Base 5	131023111₅	131023122₅
Base 6	21433305₆	21433315₆
Base 7	5313353₇	5313362₇
Base 8	2346351₈	2346357₈
Base 9	1178035₉	1178042₉
Base 10	642281₁₀	642287₁₀
Base 11	3a9612₁₁	3a9618₁₁
Base 12	26b835₁₂	26b83b₁₂
Base 13	196463₁₃	196469₁₃
Base 14	12a0d3₁₄	12a0d9₁₄
Base 15	ca48b₁₅	ca492₁₅
Base 16	9cce9₁₆	9ccef₁₆