21689

Number 21689 is an odd five-digits composite number and natural number following 21688 and preceding 21690.

Properties of the number 21689

Nominal	21689
Cardinal	twenty-one thousand six hundred eighty-nine
Cardinal twenty-one thousand six hundred eighty-nine
Ordinal	21,689th
Number of digits	5
Sum of digits	26
Product of digits	864
Number parity	Odd

Previous number is 21688

Next number is 21690

Calculation was done in 0.0000472069 seconds

Prime Factorization of 21689

Prime factorization	23 x 23 x 41
Prime factorization in exponent form	23² x 41
Prime factors	23, 41
Number of distinct prime factors ω(n)	2
Total number of prime factors Ω(n)	3
Sum of prime factors	64
Product of prime factors	943

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Divisors of 21689

List of proper divisors	1, 23, 41, 529, 943
List of all dividers	1, 23, 41, 529, 943, 21689
Number of divisors d(n)	6
Sum of all divisors σ(n)	23226
Aliquot sum	1537
21689 is a deficient number , since it is larger than the sum of its proper divisors (1537). Its deficiency is 20152.

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Prime numbers

Is 21689 a prime number?	No
Is 21689 a semiprime number?	No
Is 21689 a Chen prime number?	No
Is 21689 a Mersenne prime number?	No

Previous prime is 21683

Next prime is 21701

Calculation was done in 0.1578588486 seconds

Sequences

Is 21689 a Catalan number?	No
Is 21689 a Fibonacci number?	No
Is 21689 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.

21689 is not a Happy number

21689 is not a Humble number

21689 is not a Münchhausen number

21689 is not a Perfect number

21689 is not a Perfect square

21689 is not a Palindrome

Calculation was done in 0.0095319748 seconds

Numeric Bases of 21689

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	101010010111001₂
3	Ternary	1002202022₃
4	Quaternary	11102321₄
5	Quinary	1143224₅
6	Senary	244225₆
7	Septenary	120143₇
8	Octal	52271₈
9	Nonary	32668₉
10	Decimal	21689
12	Duodecimal	10675₁₂
16	Hexadecimal	54b9₁₆
20	Vigesimal	2e49₂₀
36	Base36	gqh₃₆
60	Sexagesimal	61T₆₀

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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 21689 (n²)	470412721
Cube of 21689 (n³)	10202781505769
Square root of 21689	147.27185746096
Natural Logarithm (ln) of 21689	9.9845604985626
Decimal Logarithm (log) of 21689	4.3362395287549

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Trigonometry

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

Sine of 21689	-0.52752143679559
Cosecant of 21689	-1.8956575605239
Cosine of 21689	0.84954171982376
Secant of 21689	1.1771052282252
Tangent of 21689	-0.62094824125297
Cotangent of 21689	-1.6104401841644

Calculation was done in 0.0000500679 seconds

Number parity

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

Is 21689 an Even Number?

Is 21689 an Odd Number?

Yes, the number 21689 is an odd number.

Total number of all odd numbers from 1 to 21689 is 10845

Sum of all the odd numbers from 1 to 21689 are 117614025

The sum of all odd numbers is a perfect square: 117614025 = 10845

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 21687

Next odd number is 21691

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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 21689 in words is "twenty-one thousand six hundred eighty-nine", meaning that:

21689 is not an aban number (as it contains the letter a)

21689 is not an eban number (as it contains the letter e)

21689 is not an iban number (as it contains the letter i)

21689 is not an oban number (as it contains the letter o)

21689 is not a tban number (as it contains the letter t)

21689 is not an uban number (as it contains the letter u)

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Numeral systems

How to write 21689 in other number systems?

Bengali numerals	২১৬৮৯
Eastern Arabic numerals	٢١٬٦٨٩
Hieroglyphs numeralsused in Ancient Egypt	𓂭𓂭𓆼𓍧𓎍𓐂
Khmer numerals	២១៦៨៩
Japanese numerals	二万千六百八十九
Roman numerals	n/a
Thai numerals	๒๑๖๘๙

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Translation

How do you say 21689 in 38 different languages?

Arabic	واحد و عشرون ألف و ستة مائة و تسعة و ثمانون
Croatian	dvadeset i jedna tisuća šeststo osamdeset i devet
Czech	dvacet jedna tisíc šest set osmdesát devět
Danish	en og tyve tusinde seks hundrede ni og firs
Dutch	éénentwintigduizend zeshonderdnegenentachtig
Estonian	akpe blaeve vɔ ɖekɛ alafa ade blaenyi vɔ asieke
Faroese	tjúgoeitt tusin og sekshundraðogáttatiníggju
Filipino	dalawáng pû’t isáng libó’t anim na daán at walóng pû’t siyám
Finnish	kaksikymmentäyksituhattakuusisataakahdeksankymmentäyhdeksän
French	vingt et un mille six cent quatre-vingt-neuf
Greek	είκοσι μία χίλιάδες εξακόσια ογδόντα εννέα
German	einundzwanzigtausendsechshundertneunundachtzig
Hebrew	עשרים ואחד אלף שש מאות שמונים ותשע
Hindi	इक्कीस हज़ार छह सौ नवासी
Hungarian	huszonegyezerhatszáznyolcvankilenc
Icelandic	tuttugu og eitt þúsund og sexhundrað og áttatíu og níu
Indonesian	dua puluh satu ribu enam ratus delapan puluh sembilan
Italian	ventunomilaseicentoottantanove
Japanese	二万千六百八十九
Korean	이만 천육백팔십구
Latvian	divdesmit viens tūkstoši sešsimt astoņdesmit deviņi
Lithuanian	dvidešimt vienas tūkstantis šeši šimtai aštuoniasdešimt devyni
Norwegian	tjueett tusen seks hundre og åttini
Persian	بیست و یک هزار و ششصد و هشتاد و نه
Polish	dwadzieścia jeden tysięcy sześćset osiemdziesiąt dziewięć
Portuguese	vinte e um mil seiscentos e oitenta e nove
Romanian	douăzeci şi una mii şase sute optzeci şi nouă
Russian	двадцать одна тысяча шестьсот восемьдесят девять
Serbian	двадесет и једна хиљада шестсто осамдесет и девет
Slovak	dvadsaťjedna tisíc šesťsto osemdesiatdeväť
Slovene	dvaset ena tisuću šesto osemdeset devet
Spanish	veintiún mil seiscientos ochenta y nueve
Swahili	elfu ishirini na moja, mia sita na themanini na tisa
Swedish	tjugoentusensexhundraåttionio
Thai	สองหมื่นหนึ่งพันหกร้อยแปดสิบเก้า
Turkish	yirmi bir bin altı yüz seksen dokuz
Ukrainian	двадцять одна тисяча шістсот вісімдесят девʼять
Vietnamese	hai mươi mốt nghìn sáu trăm tám mươi chín

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Miscellaneous

Number 21689 reversed	98612
Unicode Character	U+54B9	咹
Unix Timestamp	Thu, 01 Jan 1970 06:01:29 +0000

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