Recognised as Decimal number

438.18

Positive
Decimal
2 d.p.
Exact fraction
5 s.f.

438.18 is a decimal number equal to 21,909⁄50. It lies between 438 and 439, and as a percentage it is 43,818%.

Number properties

Absolute value438.18

SignPositive

Integer part438

Fractional part0.18

Decimal places2

Floor438

Ceiling439

Rounded to nearest438

Truncated438

Fractions & ratios

As a fraction21,909/50exact

Ratio21,909 : 50

As a percentage43,818%

Reciprocal0.0022821671≈

Arithmetic

Double876.36

Half219.09

Square192,001.7124

Cube84,131,310.339432

Square root20.9327494611≈

Cube root7.5954034994≈

Negation-438.18

Natural logarithm6.0826297849≈

Logarithm base 102.641652551≈

Representations

Decimal438.18

Scientific notation4.3818 × 10^2

Exponential4.3818e+2

IEEE 754 binary64 (hex)0x407B62E147AE147Bthe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x43DB170A32-bit single precision, may lose accuracy

Stored as438.18the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written5counted from the digits as typed, not from the value

To 0 decimal places438

To 1 decimal place438.2

To 2 decimal places438.18

To 3 decimal places438.180

To 4 decimal places438.1800

To 1 significant figure4e+2

To 2 significant figures4.4e+2

To 3 significant figures438

To 4 significant figures438.2

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.