1. Numbers
  2. Compare 641 vs 644

Compare 641 vs 644

Property641644
Typeprimecomposite number
Unique factors13
Total factors14
Prime factorization641122 × 71 × 231
Prime factorization6412 × 2 × 7 × 23
Divisors count212
Divisors1, 6411, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
Number of properties140
Additive primes62nd 
Chen primes81st 
Good primes35th 
Primes116th 
Prime triplets (1st member)24th 
Proth primes14th 
Pythagorean primes55th 
Quartan primes6th 
Sexy primes (1st member)57th 
Sexy prime quadrupletss (1st member)7th 
Sexy prime triplets (1st member)24th 
Solinas primes41st 
Sophie germain primes28th 
Twin primes (1st member)29th 
Roman numberalsDCXLIDCXLIV
Base 21010000001210100001002
Base 321220232122123
Base 4220014220104
Base 5100315100345
Base 62545625526
Base 71604716107
Base 81201812048
Base 978297859
Base 106411064410
Base 115331153611
Base 124551245812
Base 133a4133a713
Base 1433b1434014
Base 152cb152ce15
Base 162811628416
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