1. Numbers
  2. Compare 128831 vs 128840

Compare 128831 vs 128840

Property128831128840
Typeprimecomposite number
Unique factors13
Total factors15
Prime factorization128831123 × 51 × 32211
Prime factorization1288312 × 2 × 2 × 5 × 3221
Divisors count216
Divisors1, 1288311, 2, 4, 5, 8, 10, 20, 40, 3221, 6442, 12884, 16105, 25768, 32210, 64420, 128840
Number of properties80
Additive primes4970th 
Chen primes5213th 
Emirps2430th 
Harmonic primes4540th 
Primes12058th 
Prime triplets (1st member)611th 
Sexy primes (1st member)2994th 
Twin primes (1st member)1504th 
Roman numberals  
Base 2111110111001111112111110111010010002
Base 3201122011123201122012123
Base 413313033341331310204
Base 5131103115131103305
Base 62432235624322526
Base 71044413710444257
Base 837347783735108
Base 921564592156559
Base 101288311012884010
Base 118887a118888811
Base 126267b126268812
Base 1346841134684a13
Base 1434d431434d4c14
Base 152828b152829515
Base 161f73f161f74816
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