Number
35
- Positive
- Odd
- Composite
- 2 digits
35 is an odd 2-digit integer and a composite number. It has 4 divisors and a digital root of 8.
The canonical address for this page is /35.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value35
Digit count2
Digit sum8
Digital root8repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation5 × 7
Distinct prime factors25, 7
Number of divisors4
Sum of divisors σ(n)48
Aliquot sum13sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)24integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 5, 7, 354 in total
Arithmetic
Representations
Decimal35
Binary1000116 bits
Octal43
Hexadecimal23
Base 36Z
Roman numeralXXXV
In wordsthirty-five
Ordinalthirty-fifth
Scientific notation3.5 × 10^1
Engineering notation35
Nearest landmarks
Powers & multiples
35 to the power 21,225
35 to the power 342,875
35 to the power 41,500,625
35 to the power 552,521,875
First ten multiples35, 70, 105, 140, 175, 210, 245, 280, 315, 350
Powers of twoBetween 2^5 (32) and 2^6 (64)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 2
Divisible by 4No, remainder 3
Divisible by 5Yes
Divisible by 6No, remainder 5
Divisible by 7Yes
Divisible by 8No, remainder 3
Divisible by 9No, remainder 8
Divisible by 10No, remainder 5
Divisible by 11No, remainder 2
Divisible by 12No, remainder 11
Divisible by 100No, remainder 35
Collatz (3n + 1) trajectory
Steps to reach 113the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps35 → 106 → 53 → 160 → 80 → 40 → 20 → 10 → 5 → 16 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage3,500%
35% as a decimal0.35
35% of 10035
35% of 1,000350
As a fraction of 10035/100
Read another way
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Derived from 35
Other readings
Also reads as
#000035 (colour)
- #000035
- Blue
- Dark
- Nearest: Midnight blue
#000035 is a blue with RGB values 0, 0, 53 and HSL 240°, 100%, 10%. It is a dark colour, so white text on it reaches 20:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.
Colour values
#000035#000035
HEX#000035
RGBrgb(0, 0, 53)
RGB (0–1)0, 0, 0.2078
RGB percentages0%, 0%, 20.8%
HSLhsl(240, 100%, 10.4%)
HSV / HSBhsv(240, 100%, 20.8%)
CMYK100%, 100%, 0%, 79.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer53
CSS custom property--colour: #000035;
Brightness & contrast
Relative luminance0.00257WCAG 2.x, 0 is black and 1 is white
Perceived brightness17.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.97:1
Contrast with white19.97:1WCAG normal text: AAA
Contrast with black1.05:1WCAG normal text: Fail
Greyscale equivalent#040404
Inverted#FFFFCA
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.97:1WCAG large text: AAA
Contrast with black, large text1.05:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#353500
Analogous#001B35, #1B0035
Triadic#350000, #003500
Split complementary#351B00, #1B3500
Tetradic#35001B, #353500, #00351B
Tints, shades & saturation
Channel breakdown
R0
G0
B53
Red0 (0%)
Green0 (0%)
Blue53 (20.8%)
Hue240°
Saturation (HSL)100%
Lightness10.39%
Dominant channelBlue
Hex per channelR 00 · G 00 · B 35
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Harmonies
Similar named colours
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