Recognised as Decimal number

687.2

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

687.2 is a decimal number equal to 3,436⁄5. It lies between 687 and 688, and as a percentage it is 68,720%.

Number properties

Absolute value687.2

SignPositive

Integer part687

Fractional part0.2

Decimal places1

Floor687

Ceiling688

Rounded to nearest687

Truncated687

Fractions & ratios

As a fraction3,436/5exact

Ratio3,436 : 5

As a percentage68,720%

Reciprocal0.0014551804≈

Arithmetic

Double1,374.4

Half343.6

Square472,243.84

Cube324,525,966.848

Square root26.2144998045≈

Cube root8.8245868885≈

Negation-687.2

Natural logarithm6.5326253707≈

Logarithm base 102.8370831508≈

Representations

Decimal687.2

Scientific notation6.872 × 10^2

Exponential6.872e+2

IEEE 754 binary64 (hex)0x408579999999999Athe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x442BCCCD32-bit single precision, may lose accuracy

Stored as687.2the 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 places687

To 1 decimal place687.2

To 2 decimal places687.20

To 3 decimal places687.200

To 4 decimal places687.2000

To 1 significant figure7e+2

To 2 significant figures6.9e+2

To 3 significant figures687

To 4 significant figures687.2

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