1. Numbers
  2. Compare 1289 vs 1290

Compare 1289 vs 1290

Property12891290
Typeprimecomposite number
Unique factors14
Total factors14
Prime factorization1289121 × 31 × 51 × 431
Prime factorization12892 × 3 × 5 × 43
Divisors count216
Divisors1, 12891, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290
Number of properties70
Chen primes136th 
Primes209th 
Pythagorean primes103rd 
Sexy primes (2nd member)90th 
Sexy prime triplets (3rd member)34th 
Sophie germain primes45th 
Twin primes (1st member)44th 
Roman numberalsMCCLXXXIXMCCXC
Base 2101000010012101000010102
Base 31202202312022103
Base 411002141100224
Base 5201245201305
Base 65545655506
Base 73521735227
Base 82411824128
Base 91682916839
Base 10128910129010
Base 11a7211a7311
Base 128b5128b612
Base 137821378313
Base 146811468214
Base 155ae155b015
Base 165091650a16
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