Recognised as Decimal number

0.000309

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

0.000309 is a decimal number equal to 309⁄1,000,000. It lies between 0 and 1, and as a percentage it is 0.0309%.

Number properties

Absolute value0.000309

SignPositive

Integer part0

Fractional part0.000309

Decimal places6

Floor0

Ceiling1

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction309/1,000,000exact

Ratio309 : 1,000,000

As a percentage0.0309%

Reciprocal3,236.2459546926≈

Arithmetic

Double0.000618

Half0.000154

Square9.5481 × 10^-8

Cube2.9503629 × 10^-11

Square root0.0175783958≈

Cube root0.067606143≈

Negation-0.000309

Natural logarithm-8.0821692811≈

Logarithm base 10-3.5100415206≈

Representations

Decimal0.000309

Scientific notation3.09 × 10^-4

Exponential3.09e-4

IEEE 754 binary64 (hex)0x3F344028E4FB97BBthe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x39A2014732-bit single precision, may lose accuracy

Stored as0.000309the 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 places0

To 1 decimal place0.0

To 2 decimal places0.00

To 3 decimal places0.000

To 4 decimal places0.0003

To 1 significant figure0.0003

To 2 significant figures0.00031

To 3 significant figures0.000309

To 4 significant figures0.0003090

Keep nerding

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