Recognised as Decimal number

0.999906

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

0.999906 is a decimal number equal to 499,953⁄500,000. It lies between 0 and 1, and as a percentage it is 99.9906%.

Number properties

Absolute value0.999906

SignPositive

Integer part0

Fractional part0.999906

Decimal places6

Floor0

Ceiling1

Rounded to nearest1

Truncated0

Fractions & ratios

As a fraction499,953/500,000exact

Ratio499,953 : 500,000

As a percentage99.9906%

Reciprocal1.0000940088≈

Arithmetic

Double1.999812

Half0.499953

Square0.999812

Cube0.999718

Square root0.9999529989≈

Cube root0.9999686657≈

Negation-0.999906

Natural logarithm-0.0000940044≈

Logarithm base 10-0.0000408256≈

Representations

Decimal0.999906

Scientific notation9.99906 × 10^-1

Exponential9.99906e-1

IEEE 754 binary64 (hex)0x3FEFFF3ADE225FA6the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x3F7FF9D732-bit single precision, may lose accuracy

Stored as0.999906the 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 places1

To 1 decimal place1.0

To 2 decimal places1.00

To 3 decimal places1.000

To 4 decimal places0.9999

To 1 significant figure1

To 2 significant figures1.0

To 3 significant figures1.00

To 4 significant figures0.9999

Keep nerding

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