Recognised as Decimal number
400,000,000,000,000
- Positive
- Decimal
- 0 d.p.
- Exact fraction
- 1 s.f.
400,000,000,000,000 is a decimal number equal to 400,000,000,000,000⁄1. It lies between 400,000,000,000,000 and 400,000,000,000,000, and as a percentage it is 4 × 10^16%.
Number properties
Absolute value400,000,000,000,000
SignPositive
Integer part400,000,000,000,000
Fractional part0
Decimal places0
Floor400,000,000,000,000
Ceiling400,000,000,000,000
Rounded to nearest400,000,000,000,000
Truncated400,000,000,000,000
Fractions & ratios
Ratio400,000,000,000,000 : 1
As a percentage4 × 10^16%
Reciprocal2.5 × 10^-15≈
Arithmetic
Double800,000,000,000,000
Square1.6 × 10^29
Cube6.4 × 10^43
Square root20,000,000≈
Cube root73,680.6299728077≈
Negation-400,000,000,000,000
Natural logarithm33.622485663≈
Logarithm base 1014.6020599913≈
Representations
Decimal400,000,000,000,000
Scientific notation4 × 10^14
Exponential4e+14
IEEE 754 binary64 (hex)0x42F6BCC41E900000the exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x57B5E62132-bit single precision, may lose accuracy
Rounding & precision
Significant figures as written1counted from the digits as typed, not from the value
To 0 decimal places400000000000000
To 1 decimal place400000000000000.0
To 2 decimal places400000000000000.00
To 3 decimal places400000000000000.000
To 4 decimal places400000000000000.0000
To 1 significant figure4e+14
To 2 significant figures4e+14
To 3 significant figures4e+14
To 4 significant figures4e+14
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Neighbouring values
As a fraction
Also reads as
#004E14 (colour)
- #004E14
- Green
- Dark
- Nearest: Dark green
#004E14 is a green with RGB values 0, 78, 20 and HSL 135°, 100%, 15%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark green.
Colour values
#004E14#004E14
HEX#004E14
RGBrgb(0, 78, 20)
RGB (0–1)0, 0.3059, 0.0784
RGB percentages0%, 30.6%, 7.8%
HSLhsl(135.4, 100%, 15.3%)
HSV / HSBhsv(135.4, 100%, 30.6%)
CMYK100%, 0%, 74.4%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,988
CSS custom property--colour: #004E14;
Brightness & contrast
Relative luminance0.05499WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10:1
Contrast with white10:1WCAG normal text: AAA
Contrast with black2.1:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#FFB1EB
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10:1WCAG large text: AAA
Contrast with black, large text2.1:1WCAG large text: Fail
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#4E003A
Analogous#134E00, #004E3B
Triadic#14004E, #4E1400
Split complementary#3B004E, #4E0013
Tetradic#00134E, #4E003A, #4E3B00
Tints, shades & saturation
Channel breakdown
R0
G78
B20
Red0 (0%)
Green78 (30.6%)
Blue20 (7.8%)
Hue135.38°
Saturation (HSL)100%
Lightness15.29%
Dominant channelGreen
Hex per channelR 00 · G 4E · B 14
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Harmonies
Similar named colours
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