1. Numbers
  2. Compare 809 vs 820

Compare 809 vs 820

Property809820
Typeprimecomposite number
Unique factors13
Total factors14
Prime factorization809122 × 51 × 411
Prime factorization8092 × 2 × 5 × 41
Divisors count212
Divisors1, 8091, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
Number of properties70
Additive primes74th 
Chen primes95th 
Good primes39th 
Primes140th 
Pythagorean primes68th 
Sophie germain primes35th 
Twin primes (1st member)31st 
Roman numberalsDCCCIXDCCCXX
Base 21100101001211001101002
Base 31002222310101013
Base 4302214303104
Base 5112145112405
Base 63425634446
Base 72234722517
Base 81451814648
Base 91088911119
Base 108091082010
Base 116761168611
Base 125751258412
Base 134a3134b113
Base 1441b1442814
Base 1538e1539a15
Base 163291633416
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