1. Numbers
  2. Compare 61980 vs 61981

Compare 61980 vs 61981

Property6198061981
Typecomposite numberprime
Unique factors41
Total factors51
Prime factorization22 × 31 × 51 × 10331619811
Prime factorization2 × 2 × 3 × 5 × 103361981
Divisors count242
Divisors1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1033, 2066, 3099, 4132, 5165, 6198, 10330, 12396, 15495, 20660, 30990, 619801, 61981
Number of properties04
Primes 6230th
Pythagorean primes 3107th
Sexy primes (1st member) 1675th
Twin primes (2nd member) 827th
Roman numberals  
Base 21111001000011100211110010000111012
Base 3100110001203100110001213
Base 4330201304330201314
Base 53440410534404115
Base 61154540611545416
Base 734546273454637
Base 817103481710358
Base 910401691040179
Base 1061980106198110
Base 1142626114262711
Base 122ba50122ba5112
Base 1322299132229a13
Base 1418832141883314
Base 1513570151357115
Base 16f21c16f21d16
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