Decimal number

22.5

Positive
Decimal
1 d.p.
Exact fraction

22.5 is a decimal number equal to 45⁄2. It lies between 22 and 23, and as a percentage it is 2,250%.

Number properties

Absolute value22.5

SignPositive

Integer part22

Fractional part0.5

Decimal places1

Floor22

Ceiling23

Rounded to nearest23

Truncated22

Fractions & ratios

As a fraction45/2exact

Ratio45 : 2

As a percentage2,250%

Reciprocal0.0444444444≈

Arithmetic

Double45

Half11.25

Square506.25

Cube11,390.625

Square root4.7434164903≈

Cube root2.8231080866≈

Negation-22.5

Natural logarithm3.1135153092≈

Logarithm base 101.3521825181≈

Representations

Decimal22.5

Scientific notation2.25 × 10^1

Exponential2.25e+1

IEEE 754 binary64 (hex)0x4036800000000000the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x41B4000032-bit single precision, may lose accuracy

Stored as22.5the nearest binary64 value to what you typed

Rounding

To 0 decimal places23

To 1 decimal place22.5

To 2 decimal places22.50

To 3 decimal places22.500

To 4 decimal places22.5000

To 1 significant figure20

To 2 significant figures23

To 3 significant figures22.5

Keep nerding

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