Number
1,088
- Positive
- Even
- Composite
- 4 digits
1,088 is an even 4-digit integer and a composite number. It has 14 divisors and a digital root of 8.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value1,088
Digit count4
Digit sum17
Digital root8repeated digit sum
PalindromicNoreads differently backwards
Happy numberYessquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^6 × 17
Distinct prime factors22, 17
Number of divisors14
Sum of divisors σ(n)2,286
Aliquot sum1,198sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)512integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1,08814 in total
Arithmetic
Representations
Decimal1,088
Binary1000100000011 bits
Octal2100
Hexadecimal440
Base 36U8
Roman numeralMLXXXVIII
In wordsone thousand and eighty-eight
Ordinalone thousand and eighty-eighth
Scientific notation1.088 × 10^3
Engineering notation1.088 × 10^3
Nearest landmarks
Powers & multiples
1,088 to the power 21,183,744
1,088 to the power 31,287,913,472
1,088 to the power 41,401,249,857,536
1,088 to the power 51,524,559,844,999,168
First ten multiples1,088, 2,176, 3,264, 4,352, 5,440, 6,528, 7,616, 8,704, 9,792, 10,880
Powers of twoBetween 2^10 (1,024) and 2^11 (2,048)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 2
Divisible by 4Yes
Divisible by 5No, remainder 3
Divisible by 6No, remainder 2
Divisible by 7No, remainder 3
Divisible by 8Yes
Divisible by 9No, remainder 8
Divisible by 10No, remainder 8
Divisible by 11No, remainder 10
Divisible by 12No, remainder 8
Divisible by 100No, remainder 88
Collatz (3n + 1) trajectory
Steps to reach 118the total stopping time
Highest value reached1,088
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps1,088 → 544 → 272 → 136 → 68 → 34 → 17 → 52 → 26 → 13 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage108,800%
1,088% as a decimal10.88
1,088% of 1001,088
1,088% of 1,00010,880
As a fraction of 1001,088/100
Read another way
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Derived from 1,088
Also reads as
1088 (year)
- Leap year
- 366 days
- 11th century
- Dragon
1088 was a leap year of 366 days. It began on a Sunday and ended on a Monday. Easter Sunday fell on 22 April.
Structure of the year
Months of 1088
January31 days, starts Sunday
February29 days, starts Wednesday
September30 days, starts Saturday
October31 days, starts Monday
November30 days, starts Thursday
December31 days, starts Saturday
Time references
These values depend on today’s date and change daily.
Unix timestamp at the start-27,833,241,600
Unix timestamp at the end-27,801,619,201
Years from now938 years ago
Days from today342,849 days since 1 January
The number 1088
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Also reads as
#110088 (colour)
- #110088
- Blue
- Dark
- Nearest: Dark blue
#110088 is a blue with RGB values 17, 0, 136 and HSL 248°, 100%, 27%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#110088#110088
HEX#110088
HEX (short)#108
RGBrgb(17, 0, 136)
RGB (0–1)0.0667, 0, 0.5333
RGB percentages6.7%, 0%, 53.3%
HSLhsl(247.5, 100%, 26.7%)
HSV / HSBhsv(247.5, 100%, 53.3%)
CMYK87.5%, 100%, 0%, 46.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,114,248
CSS custom property--colour: #110088;
Brightness & contrast
Relative luminance0.01897WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.22:1
Contrast with white15.22:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#0D0D0D
Inverted#EEFF77
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.22:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#778800
Analogous#003388, #550088
Triadic#881100, #008811
Split complementary#885500, #338800
Tetradic#880033, #778800, #008855
Tints, shades & saturation
Channel breakdown
R17
G0
B136
Red17 (6.7%)
Green0 (0%)
Blue136 (53.3%)
Hue247.5°
Saturation (HSL)100%
Lightness26.67%
Dominant channelBlue
Hex per channelR 11 · G 00 · B 88
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