1. Numbers
  2. Compare 281 vs 290

Compare 281 vs 290

Property281290
Typeprimecomposite number
Unique factors13
Total factors13
Prime factorization281121 × 51 × 291
Prime factorization2812 × 5 × 29
Divisors count28
Divisors1, 2811, 2, 5, 10, 29, 58, 145, 290
Number of properties100
Additive primes34th 
Centered decagonal primes7th 
Chen primes45th 
Cousin primes (2nd member)17th 
Harmonic primes23rd 
Primes60th 
Prime triplets (2nd member)17th 
Pythagorean primes28th 
Sophie germain primes19th 
Twin primes (1st member)19th 
Roman numberalsCCLXXXICCXC
Base 210001100121001000102
Base 310110231012023
Base 4101214102024
Base 52111521305
Base 61145612026
Base 755175637
Base 843184428
Base 934293529
Base 102811029010
Base 112361124411
Base 121b51220212
Base 131881319413
Base 141611416a14
Base 1513b1514515
Base 161191612216
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