Compare 642739 vs 642745

Property	642739	642745
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	642739¹	5¹ × 128549¹
Prime factorization	642739	5 × 128549
Divisors count	2	4
Divisors	1, 642739	1, 5, 128549, 642745
Number of properties	4	1
Additive primes	20429th
Primes	52269th
Semiprimes		137724th
Twin primes (2nd member)	5653rd
Ulam primes	3833rd
Roman numberals
Base 2	10011100111010110011₂	10011100111010111001₂
Base 3	1012122200011₃	1012122200101₃
Base 4	2130322303₄	2130322321₄
Base 5	131031424₅	131031440₅
Base 6	21435351₆	21435401₆
Base 7	5314606₇	5314615₇
Base 8	2347263₈	2347271₈
Base 9	1178604₉	1178611₉
Base 10	642739₁₀	642745₁₀
Base 11	3a9999₁₁	3a99a4₁₁
Base 12	26bb57₁₂	26bb61₁₂
Base 13	196726₁₃	19672c₁₃
Base 14	12a33d₁₄	12a345₁₄
Base 15	ca694₁₅	ca69a₁₅
Base 16	9ceb3₁₆	9ceb9₁₆