Compare 661679 vs 661680

Property	661679	661680
Type	prime	composite number
Unique factors	1	4
Total factors	1	8
Prime factorization	661679¹	2⁴ × 3² × 5¹ × 919¹
Prime factorization	661679	2 × 2 × 2 × 2 × 3 × 3 × 5 × 919
Divisors count	2	60
Divisors	1, 661679	1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 919, 1838, 2757, 3676, 4595, 5514, 7352, 8271, 9190, 11028, 13785, 14704, 16542, 18380, 22056, 27570, 33084, 36760, 41355, 44112, 55140, 66168, 73520, 82710, 110280, 132336, 165420, 220560, 330840, 661680
Number of properties	6	0
Chen primes	21001st
Happy primes	7612th
Isolated primes	42111th
Primes	53696th
Safe primes	3101st
Sexy primes (2nd member)	11595th
Roman numberals
Base 2	10100001100010101111₂	10100001100010110000₂
Base 3	1020121122122₃	1020121122200₃
Base 4	2201202233₄	2201202300₄
Base 5	132133204₅	132133210₅
Base 6	22103155₆	22103200₆
Base 7	5424044₇	5424045₇
Base 8	2414257₈	2414260₈
Base 9	1217578₉	1217580₉
Base 10	661679₁₀	661680₁₀
Base 11	412147₁₁	412148₁₁
Base 12	27aabb₁₂	27ab00₁₂
Base 13	1a2235₁₃	1a2236₁₃
Base 14	1331cb₁₄	1331cc₁₄
Base 15	d10be₁₅	d10c0₁₅
Base 16	a18af₁₆	a18b0₁₆