Recognised as Decimal number

0.000221

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

0.000221 is a decimal number equal to 221⁄1,000,000. It lies between 0 and 1, and as a percentage it is 0.0221%.

Number properties

Absolute value0.000221

SignPositive

Integer part0

Fractional part0.000221

Decimal places6

Floor0

Ceiling1

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction221/1,000,000exact

Ratio221 : 1,000,000

As a percentage0.0221%

Reciprocal4,524.8868778281≈

Arithmetic

Double0.000442

Half0.000111

Square4.8841 × 10^-8

Cube1.0793861 × 10^-11

Square root0.0148660687≈

Cube root0.060459436≈

Negation-0.000221

Natural logarithm-8.4173478564≈

Logarithm base 10-3.6556077263≈

Representations

Decimal0.000221

Scientific notation2.21 × 10^-4

Exponential2.21e-4

IEEE 754 binary64 (hex)0x3F2CF7878B7A1C26the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x3967BC3C32-bit single precision, may lose accuracy

Stored as0.000221the 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 places0.0002

To 1 significant figure0.0002

To 2 significant figures0.00022

To 3 significant figures0.000221

To 4 significant figures0.0002210

Keep nerding

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