1. Numbers
  2. Compare 280 vs 281

Compare 280 vs 281

Property280281
Typecomposite numberprime
Unique factors31
Total factors51
Prime factorization23 × 51 × 712811
Prime factorization2 × 2 × 2 × 5 × 7281
Divisors count162
Divisors1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 2801, 281
Number of properties010
Additive primes 34th
Centered decagonal primes 7th
Chen primes 45th
Cousin primes (2nd member) 17th
Harmonic primes 23rd
Primes 60th
Prime triplets (2nd member) 17th
Pythagorean primes 28th
Sophie germain primes 19th
Twin primes (1st member) 19th
Roman numberalsCCLXXXCCLXXXI
Base 210001100021000110012
Base 310110131011023
Base 4101204101214
Base 52110521115
Base 61144611456
Base 755075517
Base 843084318
Base 934193429
Base 102801028110
Base 112351123611
Base 121b4121b512
Base 131871318813
Base 141601416114
Base 1513a1513b15
Base 161181611916
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