1. Numbers
  2. Compare 81281 vs 81289

Compare 81281 vs 81289

Property8128181289
Typeprimecomposite number
Unique factors12
Total factors14
Prime factorization812811133 × 371
Prime factorization8128113 × 13 × 13 × 37
Divisors count28
Divisors1, 812811, 13, 37, 169, 481, 2197, 6253, 81289
Number of properties70
Centered decagonal primes61st 
Chen primes3597th 
Harmonic primes3002nd 
Primes7953rd 
Pythagorean primes3963rd 
Sophie germain primes988th 
Twin primes (1st member)1025th 
Roman numberals  
Base 2100111101100000012100111101100010012
Base 3110101111023110101112013
Base 410331200141033120214
Base 5101001115101001245
Base 61424145614242016
Base 745565474556657
Base 823660182366118
Base 913344291334519
Base 1081281108128910
Base 1156082115608a11
Base 123b055123b06112
Base 132acc5132b00013
Base 142189b14218a514
Base 151913b151914415
Base 1613d811613d8916
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