21438

Number 21438 is an even five-digits composite number and natural number following 21437 and preceding 21439.

Properties of the number 21438

Nominal	21438
Cardinal	twenty-one thousand four hundred thirty-eight
Cardinal twenty-one thousand four hundred thirty-eight
Ordinal	21,438th
Number of digits	5
Sum of digits	18
Product of digits	192
Number parity	Even

Previous number is 21437

Next number is 21439

Calculation was done in 0.0000329018 seconds

Prime Factorization of 21438

Prime factorization	2 x 3 x 3 x 3 x 397
Prime factorization in exponent form	2 x 3³ x 397
Prime factors	2, 3, 397
Number of distinct prime factors ω(n)	3
Total number of prime factors Ω(n)	5
Sum of prime factors	402
Product of prime factors	2382

Calculation was done in 0.0000209808 seconds

Divisors of 21438

List of proper divisors	1, 2, 3, 6, 9, 18, 27, 54, 397, 794, 1191, 2382, 3573, 7146, 10719
List of all dividers	1, 2, 3, 6, 9, 18, 27, 54, 397, 794, 1191, 2382, 3573, 7146, 10719, 21438
Number of divisors d(n)	16
Sum of all divisors σ(n)	47760
Aliquot sum	26322
21438 is an abundant number , because the sum of its proper divisors (26322) is greater than itself. Its abundance is 4884.

Calculation was done in 0.0000250340 seconds

Prime numbers

Is 21438 a prime number?	No
Is 21438 a semiprime number?	No
Is 21438 a Chen prime number?	No
Is 21438 a Mersenne prime number?	No

Previous prime is 21433

Next prime is 21467

Calculation was done in 0.0065751076 seconds

Sequences

Is 21438 a Catalan number?	No
Is 21438 a Fibonacci number?	No
Is 21438 a Idoneal number?	No

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Number theory

Number theory is a branch of pure mathematics devoted primarily to the study of the integers and integer-valued functions.

21438 is a Happy number

21438 is not a Humble number

21438 is not a Münchhausen number

21438 is not a Perfect number

21438 is not a Perfect square

21438 is not a Palindrome

Calculation was done in 0.0025179386 seconds

Numeric Bases of 21438

In mathematics, a base or radix of a numeral system is the number of unique digits, including zero, used to represent numbers in that system.

Base	System	Value
2	Binary	101001110111110₂
3	Ternary	1002102000₃
4	Quaternary	11032332₄
5	Quinary	1141223₅
6	Senary	243130₆
7	Septenary	116334₇
8	Octal	51676₈
9	Nonary	32360₉
10	Decimal	21438
12	Duodecimal	104a6₁₂
16	Hexadecimal	53be₁₆
20	Vigesimal	2dbi₂₀
36	Base36	gji₃₆
60	Sexagesimal	5vI₆₀

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Mathematical operations

Mathematical operations are actions that are performed on numbers or mathematical expressions to find a numerical result.

Square of 21438 (n²)	459587844
Cube of 21438 (n³)	9852644199672
Square root of 21438	146.41721210295
Natural Logarithm (ln) of 21438	9.9729203272515
Decimal Logarithm (log) of 21438	4.3311842665861

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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.

Sine of 21438	-0.22629088647541
Cosecant of 21438	-4.4190909124776
Cosine of 21438	0.97405976957175
Secant of 21438	1.0266310458953
Tangent of 21438	-0.23231724945883
Cotangent of 21438	-4.3044586759245

Calculation was done in 0.0000050068 seconds

Number parity

Parity is the property of an integer of whether it is even or odd.

Is 21438 an Even Number?

Yes, the number 21438 is an even number.

Is 21438 an Odd Number?

Previous even number is 21436

Next even number is 21440

Calculation was done in 0.0000030994 seconds

Ban number

In recreational mathematics, a ban number is a number that does not contain a particular letter when spelled out in English; in other words, the letter is "banned".

The spelling of 21438 in words is "twenty-one thousand four hundred thirty-eight", meaning that:

21438 is not an aban number (as it contains the letter a)

21438 is not an eban number (as it contains the letter e)

21438 is not an iban number (as it contains the letter i)

21438 is not an oban number (as it contains the letter o)

21438 is not a tban number (as it contains the letter t)

21438 is not an uban number (as it contains the letter u)

Calculation was done in 0.0000019073 seconds

Numeral systems

How to write 21438 in other number systems?

Bengali numerals	২১৪৩৮
Eastern Arabic numerals	٢١٬٤٣٨
Hieroglyphs numeralsused in Ancient Egypt	𓂭𓂭𓆼𓍥𓎈𓐁
Khmer numerals	២១៤៣៨
Japanese numerals	二万千四百三十八
Roman numerals	n/a
Thai numerals	๒๑๔๓๘

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Translation

How do you say 21438 in 38 different languages?

Arabic	واحد و عشرون ألف و أربعة مائة و ثمانية و ثلاثون
Croatian	dvadeset i jedna tisuća četiristo trideset i osam
Czech	dvacet jedna tisíc čtyři sta třicet osm
Danish	en og tyve tusinde fire hundrede otte og tredive
Dutch	éénentwintigduizend vierhonderdachtendertig
Estonian	akpe blaeve vɔ ɖekɛ alafa ene blaetɔ̃ vɔ enyi
Faroese	tjúgoeitt tusin og fýrehundraðogtríatiátta
Filipino	dalawáng pû’t isáng libó’t ápat na daán at tatlóng pû’t waló
Finnish	kaksikymmentäyksituhattaneljäsataakolmekymmentäkahdeksan
French	vingt et un mille quatre cent trente-huit
Greek	είκοσι μία χίλιάδες τετρακόσια τριάντα οκτώ
German	einundzwanzigtausendvierhundertachtunddreißig
Hebrew	עשרים ואחד אלף ארבע מאות שלושים ושמונה
Hindi	इक्कीस हज़ार चार सौ अड़तीस
Hungarian	huszonegyezernégyszázharmincnyolc
Icelandic	tuttugu og eitt þúsund og fjögurhundrað og þrjátíu og átta
Indonesian	dua puluh satu ribu empat ratus tiga puluh delapan
Italian	ventunomilaquattrocentotrentotto
Japanese	二万千四百三十八
Korean	이만 천사백삼십팔
Latvian	divdesmit viens tūkstoši četrsimt trīsdesmit astoņi
Lithuanian	dvidešimt vienas tūkstantis keturi šimtai trisdešimt aštuoni
Norwegian	tjueett tusen fire hundre og trettiåtte
Persian	بیست و یک هزار و چهارصد و سی و هشت
Polish	dwadzieścia jeden tysięcy czterysta trzydzieści osiem
Portuguese	vinte e um mil quatrocentos e trinta e oito
Romanian	douăzeci şi una mii patru sute treizeci şi opt
Russian	двадцать одна тысяча четыреста тридцать восемь
Serbian	двадесет и једна хиљада четиристо тридесет и осам
Slovak	dvadsaťjedna tisíc štyristo tridsaťosem
Slovene	dvaset ena tisuću štiristo trideset osem
Spanish	veintiún mil cuatrocientos treinta y ocho
Swahili	elfu ishirini na moja, mia nne na thelathini na nane
Swedish	tjugoentusenfyrahundratrettioåtta
Thai	สองหมื่นหนึ่งพันสี่ร้อยสามสิบแปด
Turkish	yirmi bir bin dört yüz otuz sekiz
Ukrainian	двадцять одна тисяча чотириста тридцять вісім
Vietnamese	hai mươi mốt nghìn bốn trăm ba mươi tám

Calculation was done in 0.0153388977 seconds

Miscellaneous

Number 21438 reversed	83412
Unicode Character	U+53BE	厾
Unix Timestamp	Thu, 01 Jan 1970 05:57:18 +0000

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