Recognised as Decimal number
8.4 × 10^17
- Positive
- Decimal
- 0 d.p.
- Exact fraction
- 2 s.f.
8.4 × 10^17 is a decimal number equal to 840,000,000,000,000,000⁄1. It lies between 840,000,000,000,000,000 and 840,000,000,000,000,000, and as a percentage it is 8.4 × 10^19%.
Number properties
Absolute value8.4 × 10^17
SignPositive
Integer part840,000,000,000,000,000
Fractional part0
Decimal places0
Ceiling840,000,000,000,000,000
Rounded to nearest840,000,000,000,000,000
Truncated840,000,000,000,000,000
Fractions & ratios
Ratio840,000,000,000,000,000 : 1
As a percentage8.4 × 10^19%
Reciprocal1.19047619 × 10^-18≈
Arithmetic
Double1.68 × 10^18
Half4.2 × 10^17
Square7.056 × 10^35
Cube5.92704 × 10^53
Square root916,515,138.991168≈
Cube root943,538.796063307≈
Negation-8.4 × 10^17
Natural logarithm41.2721782867≈
Logarithm base 1017.9242792861≈
Representations
Decimal8.4 × 10^17
Scientific notation8.4 × 10^17
Exponential8.4e+17
IEEE 754 binary64 (hex)0x43A7508F1956A800the exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x5D3A847932-bit single precision, may lose accuracy
Rounding & precision
Significant figures as written2counted from the digits as typed, not from the value
To 0 decimal places840000000000000000
To 1 decimal place840000000000000000.0
To 2 decimal places840000000000000000.00
To 3 decimal places840000000000000000.000
To 4 decimal places840000000000000000.0000
To 1 significant figure8e+17
To 2 significant figures8.4e+17
To 3 significant figures8.4e+17
To 4 significant figures8.4e+17
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Neighbouring values
As a fraction
Also reads as
#084E16 (colour)
- #084E16
- Green
- Dark
- Nearest: Dark green
#084E16 is a green with RGB values 8, 78, 22 and HSL 132°, 81%, 17%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Dark green.
Colour values
#084E16#084E16
HEX#084E16
RGBrgb(8, 78, 22)
RGB (0–1)0.0314, 0.3059, 0.0863
RGB percentages3.1%, 30.6%, 8.6%
HSLhsl(132, 81.4%, 16.9%)
HSV / HSBhsv(132, 89.7%, 30.6%)
CMYK89.7%, 0%, 71.8%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer544,278
CSS custom property--colour: #084E16;
Brightness & contrast
Relative luminance0.05558WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.94:1
Contrast with white9.94:1WCAG normal text: AAA
Contrast with black2.11:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#F7B1E9
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.94:1WCAG large text: AAA
Contrast with black, large text2.11:1WCAG large text: Fail
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#4E0840
Analogous#1D4E08, #084E39
Triadic#16084E, #4E1608
Split complementary#39084E, #4E081D
Tetradic#081D4E, #4E0840, #4E3908
Tints, shades & saturation
Channel breakdown
R8
G78
B22
Red8 (3.1%)
Green78 (30.6%)
Blue22 (8.6%)
Hue132°
Saturation (HSL)81.4%
Lightness16.86%
Dominant channelGreen
Hex per channelR 08 · G 4E · B 16
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Harmonies
Similar named colours
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