Compare 645979 vs 645980

Property	645979	645980
Type	prime	composite number
Unique factors	1	3
Total factors	1	4
Prime factorization	645979¹	2² × 5¹ × 32299¹
Prime factorization	645979	2 × 2 × 5 × 32299
Divisors count	2	12
Divisors	1, 645979	1, 2, 4, 5, 10, 20, 32299, 64598, 129196, 161495, 322990, 645980
Number of properties	3	0
Isolated primes	41170th
Primes	52521st
Sexy primes (2nd member)	11374th
Roman numberals
Base 2	10011101101101011011₂	10011101101101011100₂
Base 3	1012211010011₃	1012211010012₃
Base 4	2131231123₄	2131231130₄
Base 5	131132404₅	131132410₅
Base 6	21502351₆	21502352₆
Base 7	5330215₇	5330216₇
Base 8	2355533₈	2355534₈
Base 9	1184104₉	1184105₉
Base 10	645979₁₀	645980₁₀
Base 11	401374₁₁	401375₁₁
Base 12	2719b7₁₂	2719b8₁₂
Base 13	198049₁₃	19804a₁₃
Base 14	12b5b5₁₄	12b5b6₁₄
Base 15	cb604₁₅	cb605₁₅
Base 16	9db5b₁₆	9db5c₁₆