Recognised as Decimal number

1.625

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

1.625 is a decimal number equal to 13⁄8. It lies between 1 and 2, and as a percentage it is 162.5%.

Number properties

Absolute value1.625

SignPositive

Integer part1

Fractional part0.625

Decimal places3

Floor1

Ceiling2

Rounded to nearest2

Truncated1

Fractions & ratios

As a fraction13/8exact

Ratio13 : 8

As a percentage162.5%

Reciprocal0.6153846154≈

Arithmetic

Double3.25

Half0.8125

Square2.640625

Cube4.291016

Square root1.2747548784≈

Cube root1.1756673439≈

Negation-1.625

Natural logarithm0.4855078158≈

Logarithm base 100.2108533653≈

Representations

Decimal1.625

Scientific notation1.625 × 10^0

Exponential1.625e+0

IEEE 754 binary64 (hex)0x3FFA000000000000the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x3FD0000032-bit single precision, may lose accuracy

Stored as1.625the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written4counted from the digits as typed, not from the value

To 0 decimal places2

To 1 decimal place1.6

To 2 decimal places1.63

To 3 decimal places1.625

To 4 decimal places1.6250

To 1 significant figure2

To 2 significant figures1.6

To 3 significant figures1.63

To 4 significant figures1.625

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