Compare 638669 vs 638681

Property	638669	638681
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	638669¹	229¹ × 2789¹
Prime factorization	638669	229 × 2789
Divisors count	2	4
Divisors	1, 638669	1, 229, 2789, 638681
Number of properties	5	1
Chen primes	20340th
Happy primes	7396th
Isolated primes	40739th
Primes	51984th
Semiprimes		136851st
Sexy primes (2nd member)	11266th
Roman numberals
Base 2	10011011111011001101₂	10011011111011011001₂
Base 3	1012110002102₃	1012110002212₃
Base 4	2123323031₄	2123323121₄
Base 5	130414134₅	130414211₅
Base 6	21404445₆	21404505₆
Base 7	5300003₇	5300021₇
Base 8	2337315₈	2337331₈
Base 9	1173072₉	1173085₉
Base 10	638669₁₀	638681₁₀
Base 11	3a6929₁₁	3a693a₁₁
Base 12	269725₁₂	269735₁₂
Base 13	194915₁₃	194924₁₃
Base 14	128a73₁₄	128a81₁₄
Base 15	c937e₁₅	c938b₁₅
Base 16	9becd₁₆	9bed9₁₆