Compare 1283 vs 1290

Property12831290
Typeprimecomposite number
Unique factors14
Total factors14
Prime factorization1283121 × 31 × 51 × 431
Prime factorization12832 × 3 × 5 × 43
Divisors count216
Divisors1, 12831, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290
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 numberalsMCCLXXXIIIMCCXC
Base 2101000000112101000010102
Base 31202112312022103
Base 411000341100224
Base 5201135201305
Base 65535655506
Base 73512735227
Base 82403824128
Base 91675916839
Base 10128310129010
Base 11a6711a7311
Base 128ab128b612
Base 137791378313
Base 146791468214
Base 155a8155b015
Base 165031650a16
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