Number

301

Positive
Odd
Composite
3 digits

301 is an odd 3-digit integer and a composite number. It has 4 divisors and a digital root of 4.

Number properties

ParityOddnot divisible by 2

SignPositive

PrimalityComposite

Absolute value301

Digit count3

Digit sum4

Digital root4repeated digit sum

PalindromicNoreads differently backwards

Happy numberYessquared-digit sums reach 1

Harshad numberNodivisible by its own digit sum

Factors & divisors

Prime factorisation7 × 43

Distinct prime factors27, 43

Number of divisors4

Sum of divisors σ(n)352

Aliquot sum51sum of the proper divisors

ClassificationDeficientthe aliquot sum is less than the number

Euler's totient φ(n)252integers below n that share no factor with it

SquarefreeYesno repeated prime factor

All divisors1, 7, 43, 3014 in total

Arithmetic

Previous number300

Next number302

Double602

Half150.5

Square90,601

Cube27,270,901

Square root17.349351573≈irrational, shown to 9 decimal places

Cube root6.701759395≈

Negation-301

Reciprocal0.0033222591≈

301 factorial9212331117714863144664650885047785744596… (617 digits)

Representations

Decimal301

Binary1001011019 bits

Octal455

Hexadecimal12D

Base 368D

Roman numeralCCCI

In wordsthree hundred and one

Ordinalthree hundred and first

Scientific notation3.01 × 10^2

Engineering notation301

Nearest landmarks

Next prime307+6

Previous prime293−8

Distance to nearest prime6

Nearest square below289

Nearest square above324

Powers & multiples

301 to the power 290,601

301 to the power 327,270,901

301 to the power 48,208,541,201

301 to the power 52,470,770,901,501

First ten multiples301, 602, 903, 1,204, 1,505, 1,806, 2,107, 2,408, 2,709, 3,010

Powers of twoBetween 2^8 (256) and 2^9 (512)

Divisibility tests

Divisible by 2No, remainder 1

Divisible by 3No, remainder 1

Divisible by 4No, remainder 1

Divisible by 5No, remainder 1

Divisible by 6No, remainder 1

Divisible by 7Yes

Divisible by 8No, remainder 5

Divisible by 9No, remainder 4

Divisible by 10No, remainder 1

Divisible by 11No, remainder 4

Divisible by 12No, remainder 1

Divisible by 100No, remainder 1

Collatz (3n + 1) trajectory

Steps to reach 116the total stopping time

Highest value reached9043× the starting value

Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven

First steps301 → 904 → 452 → 226 → 113 → 340 → 170 → 85 → 256 → 128 → …

Last steps… → 32 → 16 → 8 → 4 → 2 → 1

As a percentage & fraction

As a percentage30,100%

301% as a decimal3.01

301% of 100301

301% of 1,0003,010

As a fraction of 100301/100

Read another way

As seconds5 minutes and 1 second

As bytes301 B

As a 24-bit colour#00012D

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Neighbouring numbers

Derived from 301

Nearby primes

#330011 (colour)

#330011
Red
Dark
Nearest: Black

#330011 is a red with RGB values 51, 0, 17 and HSL 340°, 100%, 10%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Black.

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Colour values

#330011#330011

HEX#330011

HEX (short)#301

RGBrgb(51, 0, 17)

RGB (0–1)0.2, 0, 0.0667

RGB percentages20%, 0%, 6.7%

HSLhsl(340, 100%, 10%)

HSV / HSBhsv(340, 100%, 20%)

CMYK0%, 100%, 66.7%, 80%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,342,353

CSS custom property--colour: #330011;

Brightness & contrast

Relative luminance0.00744WCAG 2.x, 0 is black and 1 is white

Perceived brightness28.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.28:1

Contrast with white18.28:1WCAG normal text: AAA

Contrast with black1.15:1WCAG normal text: Fail

Greyscale equivalent#0C0C0C

Inverted#CCFFEE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0D0E11no red cones; affects about 1% of men; ΔE 26.8 from the original

Deuteranopia#1B1910no green cones; the most common form, about 1% of men; ΔE 27.7 from the original

Tritanopia#390006no blue cones; rare, and affects men and women equally; ΔE 7.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.28:1WCAG large text: AAA

Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Black · ΔE 27.5 Maroon · ΔE 45.2 Dark slate grey · ΔE 45.9 Dim grey · ΔE 46.2 Brown · ΔE 47.3 Saddle brown · ΔE 48.8

Nearest named CSS colourBlack (#000000)ΔE 27.53, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#003322

Analogous#33002A, #330900

Triadic#113300, #001133

Split complementary#003308, #002B33

Tetradic#2A3300, #003322, #090033

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FF0055

Lighter +30%#CC0044

Lighter +20%#990033

Lighter +10%#660022

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#330011

Less saturated −25%#2D0613

Channel breakdown

R51

B17

Red51 (20%)

Green0 (0%)

Blue17 (6.7%)

Hue340°

Saturation (HSL)100%

Lightness10%

Dominant channelRed

Hex per channelR 33 · G 00 · B 11

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Harmonies

Lighter and darker

Similar named colours

Also reads as

HTTP 301 Moved Permanently (http status)

301 Moved Permanently
Redirection
RFC 9110

HTTP 301 Moved Permanently is a redirection response: the resource has a new permanent URL. It is defined in RFC 9110, and further action is needed to complete the request.

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What it means

Status code301

Reason phraseMoved Permanentlyadvisory only; clients must not depend on the wording

Class3xx Redirection

MeaningThe resource has a new permanent URL

Defined inRFC 9110

Cacheable by defaultYesheuristically cacheable without explicit headers (RFC 9110 §15.1)

How clients behave

Indicates an errorNo

Whose faultNeither, it succeeded

Body expectedUsually

Location headerRequiredthe client follows it to the new target

Method preserved on redirectNo, may become GET

The 3xx class

Class meaningFurther action is needed to complete the request

Codes in this class7

Lowest in class300

Highest in class308

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301

Number properties

Factors & divisors

Arithmetic

Representations

Nearest landmarks

Powers & multiples

Divisibility tests

Collatz (3n + 1) trajectory

As a percentage & fraction

Read another way

Keep nerding

Neighbouring numbers

Derived from 301

Nearby primes

Other readings

#330011 (colour)

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

HTTP 301 Moved Permanently (http status)

What it means

How clients behave

The 3xx class

Keep nerding

Other 3xx codes

Commonly confused with

Read another way

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