1. Numbers
  2. Compare 6661 vs 6664

Compare 6661 vs 6664

Property66616664
Typeprimecomposite number
Unique factors13
Total factors16
Prime factorization6661123 × 72 × 171
Prime factorization66612 × 2 × 2 × 7 × 7 × 17
Divisors count224
Divisors1, 66611, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 3332, 6664
Number of properties110
Additive primes428th 
Centered decagonal primes23rd 
Chen primes469th 
Happy primes147th 
Harmonic primes312th 
Long primes329th 
Lucky primes160th 
Primes859th 
Pythagorean primes423rd 
Super primes149th 
Twin primes (2nd member)153rd 
Roman numberals  
Base 21101000000101211010000010002
Base 310001020131000102113
Base 41220011412200204
Base 520312152031245
Base 6505016505046
Base 7252647253007
Base 8150058150108
Base 9101219101249
Base 10666110666410
Base 11500611500911
Base 123a31123a3412
Base 13305513305813
Base 1425db14260014
Base 151e91151e9415
Base 161a05161a0816
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