Number
329
- Positive
- Odd
- Composite
- 3 digits
329 is an odd 3-digit integer and a composite number. It has 4 divisors and a digital root of 5.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value329
Digit count3
Digit sum14
Digital root5repeated digit sum
PalindromicNoreads differently backwards
Happy numberYessquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation7 × 47
Distinct prime factors27, 47
Number of divisors4
Sum of divisors σ(n)384
Aliquot sum55sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)276integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 7, 47, 3294 in total
Arithmetic
Representations
Decimal329
Binary1010010019 bits
Octal511
Hexadecimal149
Base 3695
Roman numeralCCCXXIX
In wordsthree hundred and twenty-nine
Ordinalthree hundred and twenty-ninth
Scientific notation3.29 × 10^2
Engineering notation329
Nearest landmarks
Powers & multiples
329 to the power 2108,241
329 to the power 335,611,289
329 to the power 411,716,114,081
329 to the power 53,854,601,532,649
First ten multiples329, 658, 987, 1,316, 1,645, 1,974, 2,303, 2,632, 2,961, 3,290
Powers of twoBetween 2^8 (256) and 2^9 (512)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 2
Divisible by 4No, remainder 1
Divisible by 5No, remainder 4
Divisible by 6No, remainder 5
Divisible by 7Yes
Divisible by 8No, remainder 1
Divisible by 9No, remainder 5
Divisible by 10No, remainder 9
Divisible by 11No, remainder 10
Divisible by 12No, remainder 5
Divisible by 100No, remainder 29
Collatz (3n + 1) trajectory
Steps to reach 150the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps329 → 988 → 494 → 247 → 742 → 371 → 1,114 → 557 → 1,672 → 836 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage32,900%
329% as a decimal3.29
329% of 100329
329% of 1,0003,290
As a fraction of 100329/100
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Derived from 329
Other readings
Also reads as
#332299 (colour)
- #332299
- Blue
- Dark
- Nearest: Navy
#332299 is a blue with RGB values 51, 34, 153 and HSL 249°, 64%, 37%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Navy.
Colour values
#332299#332299
HEX#332299
HEX (short)#329
RGBrgb(51, 34, 153)
RGB (0–1)0.2, 0.1333, 0.6
RGB percentages20%, 13.3%, 60%
HSLhsl(248.6, 63.6%, 36.7%)
HSV / HSBhsv(248.6, 77.8%, 60%)
CMYK66.7%, 77.8%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,351,193
CSS custom property--colour: #332299;
Brightness & contrast
Relative luminance0.04148WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.48:1
Contrast with white11.48:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#CCDD66
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.48:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#889922
Analogous#224D99, #6E2299
Triadic#993322, #229933
Split complementary#996E22, #4D9922
Tetradic#99224D, #889922, #22996E
Tints, shades & saturation
Channel breakdown
R51
G34
B153
Red51 (20%)
Green34 (13.3%)
Blue153 (60%)
Hue248.57°
Saturation (HSL)63.64%
Lightness36.67%
Dominant channelBlue
Hex per channelR 33 · G 22 · B 99
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