1. Numbers
  2. Compare 81281 vs 81288

Compare 81281 vs 81288

Property8128181288
Typeprimecomposite number
Unique factors13
Total factors16
Prime factorization81281123 × 32 × 11291
Prime factorization812812 × 2 × 2 × 3 × 3 × 1129
Divisors count224
Divisors1, 812811, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 1129, 2258, 3387, 4516, 6774, 9032, 10161, 13548, 20322, 27096, 40644, 81288
Number of properties70
Centered decagonal primes61st 
Chen primes3597th 
Harmonic primes3002nd 
Primes7953rd 
Pythagorean primes3963rd 
Sophie germain primes988th 
Twin primes (1st member)1025th 
Roman numberals  
Base 2100111101100000012100111101100010002
Base 3110101111023110101112003
Base 410331200141033120204
Base 5101001115101001235
Base 61424145614242006
Base 745565474556647
Base 823660182366108
Base 913344291334509
Base 1081281108128810
Base 1156082115608911
Base 123b055123b06012
Base 132acc5132accc13
Base 142189b14218a414
Base 151913b151914315
Base 1613d811613d8816
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