Compare 640949 vs 640954

Property	640949	640954
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	640949¹	2¹ × 320477¹
Prime factorization	640949	2 × 320477
Divisors count	2	4
Divisors	1, 640949	1, 2, 320477, 640954
Number of properties	5	1
Happy primes	7420th
Isolated primes	40871st
Primes	52146th
Semiprimes		137341st
Sexy primes (2nd member)	11299th
Sophie germain primes	5314th
Roman numberals
Base 2	10011100011110110101₂	10011100011110111010₂
Base 3	1012120012212₃	1012120020001₃
Base 4	2130132311₄	2130132322₄
Base 5	131002244₅	131002304₅
Base 6	21423205₆	21423214₆
Base 7	5306441₇	5306446₇
Base 8	2343665₈	2343672₈
Base 9	1176185₉	1176201₉
Base 10	640949₁₀	640954₁₀
Base 11	3a8611₁₁	3a8616₁₁
Base 12	26ab05₁₂	26ab0a₁₂
Base 13	19597a₁₃	195982₁₃
Base 14	129821₁₄	129826₁₄
Base 15	c9d9e₁₅	c9da4₁₅
Base 16	9c7b5₁₆	9c7ba₁₆