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Number

492

  • Positive
  • Even
  • Composite
  • 3 digits

492 is an even 3-digit integer and a composite number. It has 12 divisors and a digital root of 6.

Number properties

ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value492
Digit count3
Digit sum15
Digital root6repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum

Factors & divisors

Prime factorisation2^2 × 3 × 41
Distinct prime factors32, 3, 41
Number of divisors12
Sum of divisors σ(n)1,176
Aliquot sum684sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)160integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 49212 in total

Arithmetic

Previous number491
Next number493
Double984
Half246
Square242,064
Cube119,095,488
Square root22.181073013≈irrational, shown to 9 decimal places
Cube root7.894446773≈
Negation-492
Reciprocal0.0020325203≈
492 factorial3304391604362472617156051600988171585732… (1,113 digits)

Representations

Decimal492
Binary1111011009 bits
Octal754
Hexadecimal1EC
Base 36DO
Roman numeralCDXCII
In wordsfour hundred and ninety-two
Ordinalfour hundred and ninety-second
Scientific notation4.92 × 10^2
Engineering notation492

Nearest landmarks

Next prime499+7
Previous prime491−1
Distance to nearest prime1
Nearest square below484
Nearest square above529

Powers & multiples

492 to the power 2242,064
492 to the power 3119,095,488
492 to the power 458,594,980,096
492 to the power 528,828,730,207,232
First ten multiples492, 984, 1,476, 1,968, 2,460, 2,952, 3,444, 3,936, 4,428, 4,920
Powers of twoBetween 2^8 (256) and 2^9 (512)

Divisibility tests

Divisible by 2Yes
Divisible by 3Yes
Divisible by 4Yes
Divisible by 5No, remainder 2
Divisible by 6Yes
Divisible by 7No, remainder 2
Divisible by 8No, remainder 4
Divisible by 9No, remainder 6
Divisible by 10No, remainder 2
Divisible by 11No, remainder 8
Divisible by 12Yes
Divisible by 100No, remainder 92

Collatz (3n + 1) trajectory

Steps to reach 148the total stopping time
Highest value reached6281× the starting value
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps492 → 246 → 123 → 370 → 185 → 556 → 278 → 139 → 418 → 209 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1

As a percentage & fraction

As a percentage49,200%
492% as a decimal4.92
492% of 100492
492% of 1,0004,920
As a fraction of 100492/100

Read another way

As seconds8 minutes and 12 seconds
As bytes492 B
As a 24-bit colour#0001EC

Keep nerding

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Neighbouring numbers

Nearby primes

Also reads as

#449922 (colour)

  • #449922
  • Green
  • Dark
  • Nearest: Forest green

#449922 is a green with RGB values 68, 153, 34 and HSL 103°, 64%, 37%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Forest green.

Open this reading on its own page →

Colour values

#449922#449922
HEX#449922
HEX (short)#492
RGBrgb(68, 153, 34)
RGB (0–1)0.2667, 0.6, 0.1333
RGB percentages26.7%, 60%, 13.3%
HSLhsl(102.9, 63.6%, 36.7%)
HSV / HSBhsv(102.9, 77.8%, 60%)
CMYK55.6%, 0%, 77.8%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,495,650
CSS custom property--colour: #449922;

Brightness & contrast

Relative luminance0.24127WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.83:1
Contrast with white3.6:1WCAG normal text: Fail
Contrast with black5.83:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#BB66DD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9E8B04no red cones; affects about 1% of men; ΔE 43.3 from the original
Deuteranopia#93842Fno green cones; the most common form, about 1% of men; ΔE 42.4 from the original
Tritanopia#3C9483no blue cones; rare, and affects men and women equally; ΔE 52.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.6:1WCAG large text: AA
Contrast with black, large text5.83:1WCAG large text: AAA

Named colours

Forest green · ΔE 8.6Green · ΔE 11.2Olivedrab · ΔE 18.7Dark green · ΔE 22.2Yellow green · ΔE 27.1Medium seagreen · ΔE 28.1
Nearest named CSS colourForest green (#228B22)ΔE 8.59, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#772299
Analogous#7F9922, #22993C
Triadic#224499, #992244
Split complementary#3C2299, #99227F
Tetradic#227F99, #772299, #993C22

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B3E99E
Lighter +30%#93E074
Lighter +20%#72D74A
Lighter +10%#57C32B
Darker −10%#316F19
Darker −20%#1F460F
Darker −30%#0C1C06
Darker −40%#000000
More saturated +25%#3AB00B
Less saturated −25%#4E8239

Channel breakdown

R68
G153
B34
Red68 (26.7%)
Green153 (60%)
Blue34 (13.3%)
Hue102.86°
Saturation (HSL)63.64%
Lightness36.67%
Dominant channelGreen
Hex per channelR 44 · G 99 · B 22

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Every value on this page was computed from “492” by Nerdulator’s number engine. Nothing here was retrieved from a database of answers or written by a model.