Recognised as Decimal number

-0.000129

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

-0.000129 is a decimal number equal to -129⁄1,000,000. It lies between -1 and 0, and as a percentage it is -0.0129%.

Number properties

Absolute value0.000129

SignNegative

Integer part0

Fractional part0.000129

Decimal places6

Floor-1

Ceiling0

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction-129/1,000,000exact

Ratio-129 : 1,000,000

As a percentage-0.0129%

Reciprocal-7,751.9379844961≈

Arithmetic

Double-0.000258

Half-0.000064

Square1.6641 × 10^-8

Cube-2.146689 × 10^-12

Cube root-0.0505277435≈

Negation0.000129

Representations

Decimal-0.000129

Scientific notation-1.29 × 10^-4

Exponential-1.29e-4

IEEE 754 binary64 (hex)0xBF20E8858FF75968the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xB907442C32-bit single precision, may lose accuracy

Stored as-0.000129the 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-0

To 1 decimal place-0.0

To 2 decimal places-0.00

To 3 decimal places-0.000

To 4 decimal places-0.0001

To 1 significant figure-0.0001

To 2 significant figures-0.00013

To 3 significant figures-0.000129

To 4 significant figures-0.0001290

Keep nerding

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