Recognised as Decimal number

0.000081

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

0.000081 is a decimal number equal to 81⁄1,000,000. It lies between 0 and 1, and as a percentage it is 0.0081%.

Number properties

Absolute value0.000081

SignPositive

Integer part0

Fractional part0.000081

Decimal places6

Floor0

Ceiling1

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction81/1,000,000exact

Ratio81 : 1,000,000

As a percentage0.0081%

Reciprocal12,345.6790123457≈

Arithmetic

Double0.000162

Half0.000041

Square6.561 × 10^-9

Cube5.31441 × 10^-13

Square root0.009≈

Cube root0.0432674871≈

Negation-0.000081

Natural logarithm-9.4210614033≈

Logarithm base 10-4.0915149811≈

Representations

Decimal0.000081

Scientific notation8.1 × 10^-5

Exponential8.1e-5

IEEE 754 binary64 (hex)0x3F153BD1676640A7the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x38A9DE8B32-bit single precision, may lose accuracy

Stored as0.000081the 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 places0.000

To 4 decimal places0.0001

To 1 significant figure0.00008

To 2 significant figures0.000081

To 3 significant figures0.0000810

To 4 significant figures0.00008100

Keep nerding

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