1. Numbers
  2. Compare 1283 vs 1287

Compare 1283 vs 1287

Property12831287
Typeprimecomposite number
Unique factors13
Total factors14
Prime factorization1283132 × 111 × 131
Prime factorization12833 × 3 × 11 × 13
Divisors count212
Divisors1, 12831, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287
Number of properties120
Chen primes135th 
Cousin primes (2nd member)46th 
Emirps61st 
Harmonic primes72nd 
Isolated primes123rd 
Left-truncatable primes56th 
Primes208th 
Prime triplets (3rd member)33rd 
Safe primes28th 
Sexy primes (1st member)90th 
Sexy primes (2nd member)89th 
Sexy prime triplets (2nd member)34th 
Roman numberalsMCCLXXXIIIMCCLXXXVII
Base 2101000000112101000001112
Base 31202112312022003
Base 411000341100134
Base 5201135201225
Base 65535655436
Base 73512735167
Base 82403824078
Base 91675916809
Base 10128310128710
Base 11a6711a7011
Base 128ab128b312
Base 137791378013
Base 146791467d14
Base 155a8155ac15
Base 165031650716
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