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Number 21428989

Prime factorization

Factorization 21428989
Divisors 1, 21428989
Count of divisors 2
Sum of divisors 21428990

Basic properties

Is prime? ◎ YES
It's 1355364th prime number.
Previous integer 21428988
Next integer 21428990
Previous prime number 21428971
Next prime number 21429011
Reciprocal 4.6665757e-8
Square 459201569562121
Square root 4629.145601512228
Natural logarithm 16.88025518948202
Decimal logarithm 7.331001681910772
Sine -0.15526673636956279
Cosine -0.9878725831690769
Tangent 0.15717283687686723

Expressions

Binary 1010001101111101011111101
Octal 121575375
Hexadecimal 146fafd