Number Utopia
Properties of numbers / Online calculators / Number sequence database

Number 20989

Prime factorization

Factorization 139 * 151
Divisors 1, 139, 151, 20989
Count of divisors 4
Sum of divisors 21280

Basic properties

Is prime? × NO
Previous integer 20988
Next integer 20990
Previous prime number 20983
Next prime number 21001
Reciprocal 0.000047644004002
Square 440538121
Square root 144.8758088847134
Natural logarithm 9.951753769945617
Decimal logarithm 4.321991747547265
Sine -0.019480134341550118
Cosine -0.9998102441793818
Tangent 0.01948383151198746

Expressions

Binary 101000111111101
Octal 50775
Hexadecimal 51fd