Recognised as Decimal number

-138.87

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

-138.87 is a decimal number equal to -13,887⁄100. It lies between -139 and -138, and as a percentage it is -13,887%.

Number properties

Absolute value138.87

SignNegative

Integer part-138

Fractional part0.87

Decimal places2

Floor-139

Ceiling-138

Rounded to nearest-139

Truncated-138

Fractions & ratios

As a fraction-13,887/100exact

Ratio-13,887 : 100

As a percentage-13,887%

Reciprocal-0.0072009793≈

Arithmetic

Double-277.74

Half-69.435

Square19,284.8769

Cube-2,678,090.855103

Cube root-5.1784860639≈

Negation138.87

Representations

Decimal-138.87

Scientific notation-1.3887 × 10^2

Exponential-1.3887e+2

IEEE 754 binary64 (hex)0xC0615BD70A3D70A4the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xC30ADEB832-bit single precision, may lose accuracy

Stored as-138.87the 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 places-139

To 1 decimal place-138.9

To 2 decimal places-138.87

To 3 decimal places-138.870

To 4 decimal places-138.8700

To 1 significant figure-1e+2

To 2 significant figures-1.4e+2

To 3 significant figures-139

To 4 significant figures-138.9

Keep nerding

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