Recognised as Decimal number

-0.00045

Negative
Decimal
5 d.p.
Exact fraction
2 s.f.

-0.00045 is a decimal number equal to -9⁄20,000. It lies between -1 and 0, and as a percentage it is -0.045%.

Number properties

Absolute value0.00045

SignNegative

Integer part0

Fractional part0.00045

Decimal places5

Floor-1

Ceiling0

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction-9/20,000exact

Ratio-9 : 20,000

As a percentage-0.045%

Reciprocal-2,222.2222222222≈

Arithmetic

Double-0.0009

Half-0.000225

Square2.025 × 10^-7

Cube-9.1125 × 10^-11

Cube root-0.0766309432≈

Negation0.00045

Representations

Decimal-0.00045

Scientific notation-4.5 × 10^-4

Exponential-4.5e-4

IEEE 754 binary64 (hex)0xBF3D7DBF487FCB92the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xB9EBEDFA32-bit single precision, may lose accuracy

Stored as-0.00045the 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 places-0

To 1 decimal place-0.0

To 2 decimal places-0.00

To 3 decimal places-0.000

To 4 decimal places-0.0004

To 1 significant figure-0.0004

To 2 significant figures-0.00045

To 3 significant figures-0.000450

To 4 significant figures-0.0004500

Keep nerding

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