Compare 645979 vs 645990

Property	645979	645990
Type	prime	composite number
Unique factors	1	5
Total factors	1	5
Prime factorization	645979¹	2¹ × 3¹ × 5¹ × 61¹ × 353¹
Prime factorization	645979	2 × 3 × 5 × 61 × 353
Divisors count	2	32
Divisors	1, 645979	1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 353, 366, 610, 706, 915, 1059, 1765, 1830, 2118, 3530, 5295, 10590, 21533, 43066, 64599, 107665, 129198, 215330, 322995, 645990
Number of properties	3	0
Isolated primes	41170th
Primes	52521st
Sexy primes (2nd member)	11374th
Roman numberals
Base 2	10011101101101011011₂	10011101101101100110₂
Base 3	1012211010011₃	1012211010120₃
Base 4	2131231123₄	2131231212₄
Base 5	131132404₅	131132430₅
Base 6	21502351₆	21502410₆
Base 7	5330215₇	5330232₇
Base 8	2355533₈	2355546₈
Base 9	1184104₉	1184116₉
Base 10	645979₁₀	645990₁₀
Base 11	401374₁₁	401384₁₁
Base 12	2719b7₁₂	271a06₁₂
Base 13	198049₁₃	198057₁₃
Base 14	12b5b5₁₄	12b5c2₁₄
Base 15	cb604₁₅	cb610₁₅
Base 16	9db5b₁₆	9db66₁₆