Recognised as Decimal number

-401.5

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

-401.5 is a decimal number equal to -803⁄2. It lies between -402 and -401, and as a percentage it is -40,150%.

Number properties

Absolute value401.5

SignNegative

Integer part-401

Fractional part0.5

Decimal places1

Floor-402

Ceiling-401

Rounded to nearest-401

Truncated-401

Fractions & ratios

As a fraction-803/2exact

Ratio-803 : 2

As a percentage-40,150%

Reciprocal-0.00249066≈

Arithmetic

Double-803

Half-200.75

Square161,202.25

Cube-64,722,703.375

Cube root-7.3772615874≈

Negation401.5

Representations

Decimal-401.5

Scientific notation-4.015 × 10^2

Exponential-4.015e+2

IEEE 754 binary64 (hex)0xC079180000000000the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0xC3C8C00032-bit single precision, may lose accuracy

Stored as-401.5the 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 places-402

To 1 decimal place-401.5

To 2 decimal places-401.50

To 3 decimal places-401.500

To 4 decimal places-401.5000

To 1 significant figure-4e+2

To 2 significant figures-4e+2

To 3 significant figures-402

To 4 significant figures-401.5

Keep nerding

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