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Number 28561

Prime factorization

Factorization 13 * 13 * 13 * 13
Divisors 1, 13, 169, 2197, 28561
Count of divisors 5
Sum of divisors 30941

Basic properties

Is prime? × NO
Previous integer 28560
Next integer 28562
Previous prime number 28559
Next prime number 28573
Reciprocal 0.000035012779664
Square 815730721
Square root 169
Natural logarithm 10.259797429846147
Decimal logarithm 4.455773409227347
Sine -0.7041222206455191
Cosine -0.7100787973128212
Tangent 0.9916113863843788

Expressions

Binary 110111110010001
Octal 67621
Hexadecimal 6f91