Compare 664540 vs 664549

Property	664540	664549
Type	composite number	prime
Unique factors	4	1
Total factors	5	1
Prime factorization	2² × 5¹ × 149¹ × 223¹	664549¹
Prime factorization	2 × 2 × 5 × 149 × 223	664549
Divisors count	24	2
Divisors	1, 2, 4, 5, 10, 20, 149, 223, 298, 446, 596, 745, 892, 1115, 1490, 2230, 2980, 4460, 33227, 66454, 132908, 166135, 332270, 664540	1, 664549
Number of properties	0	3
Isolated primes		42271st
Lucky primes		6166th
Primes		53908th
Roman numberals
Base 2	10100010001111011100₂	10100010001111100101₂
Base 3	1020202120121₃	1020202120221₃
Base 4	2202033130₄	2202033211₄
Base 5	132231130₅	132231144₅
Base 6	22124324₆	22124341₆
Base 7	5435302₇	5435314₇
Base 8	2421734₈	2421745₈
Base 9	1222517₉	1222527₉
Base 10	664540₁₀	664549₁₀
Base 11	414308₁₁	414316₁₁
Base 12	2806a4₁₂	2806b1₁₂
Base 13	1a3626₁₃	1a3632₁₃
Base 14	134272₁₄	13427b₁₄
Base 15	d1d7a₁₅	d1d84₁₅
Base 16	a23dc₁₆	a23e5₁₆