Recognised as Decimal number

0.0039

Positive
Decimal
4 d.p.
Exact fraction
2 s.f.

0.0039 is a decimal number equal to 39⁄10,000. It lies between 0 and 1, and as a percentage it is 0.39%.

Number properties

Absolute value0.0039

SignPositive

Integer part0

Fractional part0.0039

Decimal places4

Floor0

Ceiling1

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction39/10,000exact

Ratio39 : 10,000

As a percentage0.39%

Reciprocal256.4102564103≈

Arithmetic

Double0.0078

Half0.00195

Square0.000015

Cube5.9319 × 10^-8

Square root0.06244998≈

Cube root0.1574060917≈

Negation-0.0039

Natural logarithm-5.5467787258≈

Logarithm base 10-2.408935393≈

Representations

Decimal0.0039

Scientific notation3.9 × 10^-3

Exponential3.9e-3

IEEE 754 binary64 (hex)0x3F6FF2E48E8A71DEthe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x3B7F972432-bit single precision, may lose accuracy

Stored as0.0039the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written2counted from the digits as typed, not from the value

To 0 decimal places0

To 1 decimal place0.0

To 2 decimal places0.00

To 3 decimal places0.004

To 4 decimal places0.0039

To 1 significant figure0.004

To 2 significant figures0.0039

To 3 significant figures0.00390

To 4 significant figures0.003900

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