Recognised as Decimal number

-0.646464

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

-0.646464 is a decimal number equal to -10,101⁄15,625. It lies between -1 and 0, and as a percentage it is -64.6464%.

Number properties

Absolute value0.646464

SignNegative

Integer part0

Fractional part0.646464

Decimal places6

Floor-1

Ceiling0

Rounded to nearest-1

Truncated0

Fractions & ratios

As a fraction-10,101/15,625exact

Ratio-10,101 : 15,625

As a percentage-64.6464%

Reciprocal-1.5468765469≈

Arithmetic

Double-1.292928

Half-0.323232

Square0.417916

Cube-0.270167

Cube root-0.8646654681≈

Negation0.646464

Representations

Decimal-0.646464

Scientific notation-6.46464 × 10^-1

Exponential-6.46464e-1

IEEE 754 binary64 (hex)0xBFE4AFD5454152B1the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xBF257EAA32-bit single precision, may lose accuracy

Stored as-0.646464the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written6counted from the digits as typed, not from the value

To 0 decimal places-1

To 1 decimal place-0.6

To 2 decimal places-0.65

To 3 decimal places-0.646

To 4 decimal places-0.6465

To 1 significant figure-0.6

To 2 significant figures-0.65

To 3 significant figures-0.646

To 4 significant figures-0.6465

Keep nerding

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