Compare 161971 vs 161980

Property	161971	161980
Type	prime	composite number
Unique factors	1	5
Total factors	1	6
Prime factorization	161971¹	2² × 5¹ × 7¹ × 13¹ × 89¹
Prime factorization	161971	2 × 2 × 5 × 7 × 13 × 89
Divisors count	2	48
Divisors	1, 161971	1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 89, 91, 130, 140, 178, 182, 260, 356, 364, 445, 455, 623, 890, 910, 1157, 1246, 1780, 1820, 2314, 2492, 3115, 4628, 5785, 6230, 8099, 11570, 12460, 16198, 23140, 32396, 40495, 80990, 161980
Number of properties	7	0
Emirps	3270th
Harmonic primes	5567th
Long primes	5543rd
Primes	14849th
Sexy primes (1st member)	3594th
Sexy prime triplets (1st member)	741st
Twin primes (2nd member)	1822nd
Roman numberals
Base 2	100111100010110011₂	100111100010111100₂
Base 3	22020011221₃	22020012021₃
Base 4	213202303₄	213202330₄
Base 5	20140341₅	20140410₅
Base 6	3245511₆	3245524₆
Base 7	1243135₇	1243150₇
Base 8	474263₈	474274₈
Base 9	266157₉	266167₉
Base 10	161971₁₀	161980₁₀
Base 11	100767₁₁	100775₁₁
Base 12	79897₁₂	798a4₁₂
Base 13	58954₁₃	58960₁₃
Base 14	43055₁₄	43060₁₄
Base 15	32ed1₁₅	32eda₁₅
Base 16	278b3₁₆	278bc₁₆