Recognised as Decimal number

-0.998642

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

-0.998642 is a decimal number equal to -499,321⁄500,000. It lies between -1 and 0, and as a percentage it is -99.8642%.

Number properties

Absolute value0.998642

SignNegative

Integer part0

Fractional part0.998642

Decimal places6

Floor-1

Ceiling0

Rounded to nearest-1

Truncated0

Fractions & ratios

As a fraction-499,321/500,000exact

Ratio-499,321 : 500,000

As a percentage-99.8642%

Reciprocal-1.0013598467≈

Arithmetic

Double-1.997284

Half-0.499321

Square0.997286

Cube-0.995932

Cube root-0.9995471283≈

Negation0.998642

Representations

Decimal-0.998642

Scientific notation-9.98642 × 10^-1

Exponential-9.98642e-1

IEEE 754 binary64 (hex)0xBFEFF4E0114D2F5Ethe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xBF7FA70132-bit single precision, may lose accuracy

Stored as-0.998642the 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-1.0

To 2 decimal places-1.00

To 3 decimal places-0.999

To 4 decimal places-0.9986

To 1 significant figure-1

To 2 significant figures-1.0

To 3 significant figures-0.999

To 4 significant figures-0.9986

Keep nerding

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