1. Numbers
  2. Compare 1277 vs 1280

Compare 1277 vs 1280

Property12771280
Typeprimecomposite number
Unique factors12
Total factors19
Prime factorization1277128 × 51
Prime factorization12772 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5
Divisors count218
Divisors1, 12771, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280
Number of properties100
Additive primes111th 
Chen primes134th 
Good primes50th 
Happy primes41st 
Primes206th 
Prime triplets (1st member)33rd 
Pythagorean primes102nd 
Sexy primes (1st member)89th 
Sexy prime triplets (1st member)34th 
Twin primes (1st member)43rd 
Roman numberalsMCCLXXVIIMCCLXXX
Base 2100111111012101000000002
Base 31202022312021023
Base 410333141100004
Base 5201025201105
Base 65525655326
Base 73503735067
Base 82375824008
Base 91668916729
Base 10127710128010
Base 11a6111a6411
Base 128a5128a812
Base 137731377613
Base 146731467614
Base 155a2155a515
Base 164fd1650016
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