21397

Number 21397 is an odd five-digits prime number and natural number following 21396 and preceding 21398.

Properties of the number 21397

Nominal	21397
Cardinal	twenty-one thousand three hundred ninety-seven
Cardinal twenty-one thousand three hundred ninety-seven
Ordinal	21,397th
Number of digits	5
Sum of digits	22
Product of digits	378
Number parity	Odd

Previous number is 21396

Next number is 21398

Calculation was done in 0.0000360012 seconds

Prime Factorization of 21397

Prime factorization	21397
Prime factors	21397
Number of distinct prime factors ω(n)	1
Total number of prime factors Ω(n)	1
Sum of prime factors	21397
Product of prime factors	21397

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Divisors of 21397

List of proper divisors	1
List of all dividers	1, 21397
Number of divisors d(n)	2
Sum of all divisors σ(n)	21398
Aliquot sum	1
21397 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 21396.

Calculation was done in 0.0000190735 seconds

Prime numbers

Is 21397 a prime number?	Yes
Is 21397 a semiprime number?	No
Is 21397 a Chen prime number?	No
Is 21397 a Mersenne prime number?	No

Previous prime is 21391

Next prime is 21401

Calculation was done in 0.0805189610 seconds

Sequences

Is 21397 a Catalan number?	No
Is 21397 a Fibonacci number?	No
Is 21397 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.

21397 is not a Happy number

21397 is not a Humble number

21397 is not a Münchhausen number

21397 is not a Perfect number

21397 is not a Perfect square

21397 is not a Palindrome

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Numeric Bases of 21397

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	101001110010101₂
3	Ternary	1002100111₃
4	Quaternary	11032111₄
5	Quinary	1141042₅
6	Senary	243021₆
7	Septenary	116245₇
8	Octal	51625₈
9	Nonary	32314₉
10	Decimal	21397
12	Duodecimal	10471₁₂
16	Hexadecimal	5395₁₆
20	Vigesimal	2d9h₂₀
36	Base36	gid₃₆
60	Sexagesimal	5ub₆₀

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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 21397 (n²)	457831609
Cube of 21397 (n³)	9796222937773
Square root of 21397	146.27713423499
Natural Logarithm (ln) of 21397	9.971006004267
Decimal Logarithm (log) of 21397	4.3303528866773

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Trigonometry

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

Sine of 21397	0.37793384058763
Cosecant of 21397	2.6459657553956
Cosine of 21397	-0.92583260481508
Secant of 21397	-1.0801088607154
Tangent of 21397	-0.40820968998291
Cotangent of 21397	-2.4497213675694

Calculation was done in 0.0000131130 seconds

Number parity

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

Is 21397 an Even Number?

Is 21397 an Odd Number?

Yes, the number 21397 is an odd number.

Total number of all odd numbers from 1 to 21397 is 10699

Sum of all the odd numbers from 1 to 21397 are 114468601

The sum of all odd numbers is a perfect square: 114468601 = 10699

An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.

Previous odd number is 21395

Next odd number is 21399

Calculation was done in 0.0000059605 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 21397 in words is "twenty-one thousand three hundred ninety-seven", meaning that:

21397 is not an aban number (as it contains the letter a)

21397 is not an eban number (as it contains the letter e)

21397 is not an iban number (as it contains the letter i)

21397 is not an oban number (as it contains the letter o)

21397 is not a tban number (as it contains the letter t)

21397 is not an uban number (as it contains the letter u)

Calculation was done in 0.0000021458 seconds

Numeral systems

How to write 21397 in other number systems?

Bengali numerals	২১৩৯৭
Eastern Arabic numerals	٢١٬٣٩٧
Hieroglyphs numeralsused in Ancient Egypt	𓂭𓂭𓆼𓍤𓎎𓐀
Khmer numerals	២១៣៩៧
Japanese numerals	二万千三百九十七
Roman numerals	n/a
Thai numerals	๒๑๓๙๗

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Translation

How do you say 21397 in 38 different languages?

Arabic	واحد و عشرون ألف و ثلاثة مائة و سبعة و تسعون
Croatian	dvadeset i jedna tisuća tristo devedeset i sedam
Czech	dvacet jedna tisíc tři sta devadesát sedm
Danish	en og tyve tusinde tre hundrede syv og halvfems
Dutch	éénentwintigduizend driehonderdzevenennegentig
Estonian	akpe blaeve vɔ ɖekɛ alafa etɔ̃ blaasieke vɔ adre
Faroese	tjúgoeitt tusin og trýhundraðognítisjey
Filipino	dalawáng pû’t isáng libó’t tatlóng daán at siyám na pû’t pitó
Finnish	kaksikymmentäyksituhattakolmesataayhdeksänkymmentäseitsemän
French	vingt et un mille trois cent quatre-vingt-dix-sept
Greek	είκοσι μία χίλιάδες τριακόσια εννενήντα επτά
German	einundzwanzigtausenddreihundertsiebenundneunzig
Hebrew	עשרים ואחד אלף שלוש מאות תשעים ושבע
Hindi	इक्कीस हज़ार तीन सौ सत्तानबे
Hungarian	huszonegyezerháromszázkilencvenhét
Icelandic	tuttugu og eitt þúsund og þrjúhundrað og níutíu og sjó
Indonesian	dua puluh satu ribu tiga ratus sembilan puluh tujuh
Italian	ventunomilatrecentonovantasette
Japanese	二万千三百九十七
Korean	이만 천삼백구십칠
Latvian	divdesmit viens tūkstoši trīssimt deviņdesmit septiņi
Lithuanian	dvidešimt vienas tūkstantis trys šimtai devyniasdešimt septyni
Norwegian	tjueett tusen tre hundre og nittisju
Persian	بیست و یک هزار و سیصد و نود و هفت
Polish	dwadzieścia jeden tysięcy trzysta dziewięćdziesiąt siedem
Portuguese	vinte e um mil trezentos e noventa e sete
Romanian	douăzeci şi una mii trei sute nouăzeci şi şapte
Russian	двадцать одна тысяча триста девяносто семь
Serbian	двадесет и једна хиљада триста деведесет и седам
Slovak	dvadsaťjedna tisíc tristo deväťdesiatsedem
Slovene	dvaset ena tisuću tristo devetdeset sedem
Spanish	veintiún mil trescientos noventa y siete
Swahili	elfu ishirini na moja, mia tatu na tisini na saba
Swedish	tjugoentusentrehundranittiosju
Thai	สองหมื่นหนึ่งพันสามร้อยเก้าสิบเจ็ด
Turkish	yirmi bir bin üç yüz doksan yedi
Ukrainian	двадцять одна тисяча триста девʼяносто сім
Vietnamese	hai mươi mốt nghìn ba trăm chín mươi bảy

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Miscellaneous

Number 21397 reversed	79312
Unicode Character	U+5395	厕
Unix Timestamp	Thu, 01 Jan 1970 05:56:37 +0000

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