Number
326
- Positive
- Even
- Composite
- 3 digits
326 is an even 3-digit integer and a composite number. It has 4 divisors and a digital root of 2.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value326
Digit count3
Digit sum11
Digital root2repeated digit sum
PalindromicNoreads differently backwards
Happy numberYessquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation2 × 163
Distinct prime factors22, 163
Number of divisors4
Sum of divisors σ(n)492
Aliquot sum166sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)162integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 2, 163, 3264 in total
Arithmetic
Representations
Decimal326
Binary1010001109 bits
Octal506
Hexadecimal146
Base 3692
Roman numeralCCCXXVI
In wordsthree hundred and twenty-six
Ordinalthree hundred and twenty-sixth
Scientific notation3.26 × 10^2
Engineering notation326
Nearest landmarks
Powers & multiples
326 to the power 2106,276
326 to the power 334,645,976
326 to the power 411,294,588,176
326 to the power 53,682,035,745,376
First ten multiples326, 652, 978, 1,304, 1,630, 1,956, 2,282, 2,608, 2,934, 3,260
Powers of twoBetween 2^8 (256) and 2^9 (512)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 2
Divisible by 4No, remainder 2
Divisible by 5No, remainder 1
Divisible by 6No, remainder 2
Divisible by 7No, remainder 4
Divisible by 8No, remainder 6
Divisible by 9No, remainder 2
Divisible by 10No, remainder 6
Divisible by 11No, remainder 7
Divisible by 12No, remainder 2
Divisible by 100No, remainder 26
Collatz (3n + 1) trajectory
Steps to reach 124the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps326 → 163 → 490 → 245 → 736 → 368 → 184 → 92 → 46 → 23 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage32,600%
326% as a decimal3.26
326% of 100326
326% of 1,0003,260
As a fraction of 100326/100
Read another way
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Derived from 326
Other readings
Also reads as
#332266 (colour)
- #332266
- Violet
- Dark
- Nearest: Dark slateblue
#332266 is a violet with RGB values 51, 34, 102 and HSL 255°, 50%, 27%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.
Colour values
#332266#332266
HEX#332266
HEX (short)#326
RGBrgb(51, 34, 102)
RGB (0–1)0.2, 0.1333, 0.4
RGB percentages20%, 13.3%, 40%
HSLhsl(255, 50%, 26.7%)
HSV / HSBhsv(255, 66.7%, 40%)
CMYK50%, 66.7%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,351,142
CSS custom property--colour: #332266;
Brightness & contrast
Relative luminance0.02807WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.45:1
Contrast with white13.45:1WCAG normal text: AAA
Contrast with black1.56:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#CCDD99
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.45:1WCAG large text: AAA
Contrast with black, large text1.56:1WCAG large text: Fail
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#556622
Analogous#223366, #552266
Triadic#663322, #226633
Split complementary#665522, #336622
Tetradic#662233, #556622, #226655
Tints, shades & saturation
Channel breakdown
R51
G34
B102
Red51 (20%)
Green34 (13.3%)
Blue102 (40%)
Hue255°
Saturation (HSL)50%
Lightness26.67%
Dominant channelBlue
Hex per channelR 33 · G 22 · B 66
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Harmonies
Similar named colours
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