Recognised as Decimal number

0.000045

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

0.000045 is a decimal number equal to 9⁄200,000. It lies between 0 and 1, and as a percentage it is 0.0045%.

Number properties

Absolute value0.000045

SignPositive

Integer part0

Fractional part0.000045

Decimal places6

Floor0

Ceiling1

Rounded to nearest0

Truncated0

Fractions & ratios

As a fraction9/200,000exact

Ratio9 : 200,000

As a percentage0.0045%

Reciprocal22,222.2222222222≈

Arithmetic

Double0.00009

Half0.000023

Square2.025 × 10^-9

Cube9.1125 × 10^-14

Square root0.0067082039≈

Cube root0.035568933≈

Negation-0.000045

Natural logarithm-10.0088480682≈

Logarithm base 10-4.3467874862≈

Representations

Decimal0.000045

Scientific notation4.5 × 10^-5

Exponential4.5e-5

IEEE 754 binary64 (hex)0x3F0797CC39FFD60Fthe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x383CBE6232-bit single precision, may lose accuracy

Stored as0.000045the 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 places0.0000

To 1 significant figure0.00005

To 2 significant figures0.000045

To 3 significant figures0.0000450

To 4 significant figures0.00004500

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