Recognised as Decimal number

-27.5

Negative
Decimal
1 d.p.
Exact fraction
3 s.f.

-27.5 is a decimal number equal to -55⁄2. It lies between -28 and -27, and as a percentage it is -2,750%.

Number properties

Absolute value27.5

SignNegative

Integer part-27

Fractional part0.5

Decimal places1

Floor-28

Ceiling-27

Rounded to nearest-27

Truncated-27

Fractions & ratios

As a fraction-55/2exact

Ratio-55 : 2

As a percentage-2,750%

Reciprocal-0.0363636364≈

Arithmetic

Double-55

Half-13.75

Square756.25

Cube-20,796.875

Cube root-3.0184053684≈

Negation27.5

Representations

Decimal-27.5

Scientific notation-2.75 × 10^1

Exponential-2.75e+1

IEEE 754 binary64 (hex)0xC03B800000000000the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xC1DC000032-bit single precision, may lose accuracy

Stored as-27.5the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written3counted from the digits as typed, not from the value

To 0 decimal places-28

To 1 decimal place-27.5

To 2 decimal places-27.50

To 3 decimal places-27.500

To 4 decimal places-27.5000

To 1 significant figure-3e+1

To 2 significant figures-28

To 3 significant figures-27.5

To 4 significant figures-27.50

Keep nerding

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