21388

Number 21388 is an even five-digits composite number and natural number following 21387 and preceding 21389.

Properties of the number 21388

Nominal	21388
Cardinal	twenty-one thousand three hundred eighty-eight
Cardinal twenty-one thousand three hundred eighty-eight
Ordinal	21,388th
Number of digits	5
Sum of digits	22
Product of digits	384
Number parity	Even

Previous number is 21387

Next number is 21389

Calculation was done in 0.0000460148 seconds

Prime Factorization of 21388

Prime factorization	2 x 2 x 5347
Prime factorization in exponent form	2² x 5347
Prime factors	2, 5347
Number of distinct prime factors ω(n)	2
Total number of prime factors Ω(n)	3
Sum of prime factors	5349
Product of prime factors	10694

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Divisors of 21388

List of proper divisors	1, 2, 4, 5347, 10694
List of all dividers	1, 2, 4, 5347, 10694, 21388
Number of divisors d(n)	6
Sum of all divisors σ(n)	37436
Aliquot sum	16048
21388 is a deficient number , since it is larger than the sum of its proper divisors (16048). Its deficiency is 5340.

Calculation was done in 0.0000312328 seconds

Prime numbers

Is 21388 a prime number?	No
Is 21388 a semiprime number?	No
Is 21388 a Chen prime number?	No
Is 21388 a Mersenne prime number?	No

Previous prime is 21383

Next prime is 21391

Calculation was done in 0.0016038418 seconds

Sequences

Is 21388 a Catalan number?	No
Is 21388 a Fibonacci number?	No
Is 21388 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.

21388 is not a Happy number

21388 is not a Humble number

21388 is not a Münchhausen number

21388 is not a Perfect number

21388 is not a Perfect square

21388 is not a Palindrome

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Numeric Bases of 21388

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	101001110001100₂
3	Ternary	1002100011₃
4	Quaternary	11032030₄
5	Quinary	1141023₅
6	Senary	243004₆
7	Septenary	116233₇
8	Octal	51614₈
9	Nonary	32304₉
10	Decimal	21388
12	Duodecimal	10464₁₂
16	Hexadecimal	538c₁₆
20	Vigesimal	2d98₂₀
36	Base36	gi4₃₆
60	Sexagesimal	5uS₆₀

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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 21388 (n²)	457446544
Cube of 21388 (n³)	9783866683072
Square root of 21388	146.24636747626
Natural Logarithm (ln) of 21388	9.9705852960686
Decimal Logarithm (log) of 21388	4.3301701754283

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Trigonometry

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

Sine of 21388	0.03720577153413
Cosecant of 21388	26.877550411303
Cosine of 21388	0.99930762559111
Secant of 21388	1.0006928541234
Tangent of 21388	0.03723154970635
Cotangent of 21388	26.858941083224

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Number parity

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

Is 21388 an Even Number?

Yes, the number 21388 is an even number.

Is 21388 an Odd Number?

Previous even number is 21386

Next even number is 21390

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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 21388 in words is "twenty-one thousand three hundred eighty-eight", meaning that:

21388 is not an aban number (as it contains the letter a)

21388 is not an eban number (as it contains the letter e)

21388 is not an iban number (as it contains the letter i)

21388 is not an oban number (as it contains the letter o)

21388 is not a tban number (as it contains the letter t)

21388 is not an uban number (as it contains the letter u)

Calculation was done in 0.0000030994 seconds

Numeral systems

How to write 21388 in other number systems?

Bengali numerals	২১৩৮৮
Eastern Arabic numerals	٢١٬٣٨٨
Hieroglyphs numeralsused in Ancient Egypt	𓂭𓂭𓆼𓍤𓎍𓐁
Khmer numerals	២១៣៨៨
Japanese numerals	二万千三百八十八
Roman numerals	n/a
Thai numerals	๒๑๓๘๘

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Translation

How do you say 21388 in 38 different languages?

Arabic	واحد و عشرون ألف و ثلاثة مائة و ثمانية و ثمانون
Croatian	dvadeset i jedna tisuća tristo osamdeset i osam
Czech	dvacet jedna tisíc tři sta osmdesát osm
Danish	en og tyve tusinde tre hundrede otte og firs
Dutch	éénentwintigduizend driehonderdachtentachtig
Estonian	akpe blaeve vɔ ɖekɛ alafa etɔ̃ blaenyi vɔ enyi
Faroese	tjúgoeitt tusin og trýhundraðogáttatiátta
Filipino	dalawáng pû’t isáng libó’t tatlóng daán at walóng pû’t waló
Finnish	kaksikymmentäyksituhattakolmesataakahdeksankymmentäkahdeksan
French	vingt et un mille trois cent quatre-vingt-huit
Greek	είκοσι μία χίλιάδες τριακόσια ογδόντα οκτώ
German	einundzwanzigtausenddreihundertachtundachtzig
Hebrew	עשרים ואחד אלף שלוש מאות שמונים ושמונה
Hindi	इक्कीस हज़ार तीन सौ अट्ठासी
Hungarian	huszonegyezerháromszáznyolcvannyolc
Icelandic	tuttugu og eitt þúsund og þrjúhundrað og áttatíu og átta
Indonesian	dua puluh satu ribu tiga ratus delapan puluh delapan
Italian	ventunomilatrecentoottantotto
Japanese	二万千三百八十八
Korean	이만 천삼백팔십팔
Latvian	divdesmit viens tūkstoši trīssimt astoņdesmit astoņi
Lithuanian	dvidešimt vienas tūkstantis trys šimtai aštuoniasdešimt aštuoni
Norwegian	tjueett tusen tre hundre og åttiåtte
Persian	بیست و یک هزار و سیصد و هشتاد و هشت
Polish	dwadzieścia jeden tysięcy trzysta osiemdziesiąt osiem
Portuguese	vinte e um mil trezentos e oitenta e oito
Romanian	douăzeci şi una mii trei sute optzeci şi opt
Russian	двадцать одна тысяча триста восемьдесят восемь
Serbian	двадесет и једна хиљада триста осамдесет и осам
Slovak	dvadsaťjedna tisíc tristo osemdesiatosem
Slovene	dvaset ena tisuću tristo osemdeset osem
Spanish	veintiún mil trescientos ochenta y ocho
Swahili	elfu ishirini na moja, mia tatu na themanini na nane
Swedish	tjugoentusentrehundraåttioåtta
Thai	สองหมื่นหนึ่งพันสามร้อยแปดสิบแปด
Turkish	yirmi bir bin üç yüz seksen sekiz
Ukrainian	двадцять одна тисяча триста вісімдесят вісім
Vietnamese	hai mươi mốt nghìn ba trăm tám mươi tám

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Miscellaneous

Number 21388 reversed	88312
Unicode Character	U+538C	厌
Unix Timestamp	Thu, 01 Jan 1970 05:56:28 +0000

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