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Number 1990

Prime factorization

Factorization 2 * 5 * 199
Divisors 1, 2, 5, 10, 199, 398, 995, 1990
Count of divisors 8
Sum of divisors 3600

Basic properties

Is prime? × NO
Previous integer 1989
Next integer 1991
Previous prime number 1987
Next prime number 1993
Reciprocal 0.000502512562814
Square 3960100
Square root 44.609416046390926
Natural logarithm 7.595889917718538
Decimal logarithm 3.2988530764097064
Sine -0.9802754211806953
Cosine -0.19763627862568753
Tangent 4.959997364842536

Expressions

Binary 11111000110
Octal 3706
Hexadecimal 7c6