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21421

Number 21421 is an odd five-digits composite number and natural number following 21420 and preceding 21422.

Properties of the number 21421

Nominal21421
Cardinaltwenty-one thousand four hundred twenty-one
Cardinal
twenty-one thousand four hundred twenty-one
Ordinal21,421st
Number of digits5
Sum of digits10
Product of digits16
Number parityOdd
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Prime Factorization of 21421

Prime factorization31 x 691
Prime factors31, 691
Number of distinct prime factors ω(n)2
Total number of prime factors Ω(n)2
Sum of prime factors722
Product of prime factors21421
Calculation was done in 0.0000250340 seconds

Divisors of 21421

List of proper divisors 1, 31, 691
List of all dividers1, 31, 691, 21421
Number of divisors d(n)4
Sum of all divisors σ(n)22144
Aliquot sum 723
21421 is a deficient number , since it is larger than the sum of its proper divisors (723). Its deficiency is 20698.
Calculation was done in 0.0000200272 seconds

Prime numbers

Is 21421 a prime number?No
Is 21421 a semiprime number?Yes
Is 21421 a Chen prime number?No
Is 21421 a Mersenne prime number?No
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Sequences

Is 21421 a Catalan number?No
Is 21421 a Fibonacci number?No
Is 21421 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.
21421 is not a Happy number
21421 is not a Humble number
21421 is not a Münchhausen number
21421 is not a Perfect number
21421 is not a Perfect square
21421 is not a Palindrome
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Numeric Bases of 21421

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.
BaseSystemValue
2Binary1010011101011012
3Ternary10021011013
4Quaternary110322314
5Quinary11411415
6Senary2431016
7Septenary1163117
8Octal516558
9Nonary323419
10Decimal21421
12Duodecimal1049112
16Hexadecimal53ad16
20Vigesimal2db120
36Base36gj136
60Sexagesimal5v160
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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 21421 (n2)458859241
Cube of 21421 (n3)9829223801461
Square root of 21421146.35914730552
Natural Logarithm (ln) of 214219.9721270282528
Decimal Logarithm (log) of 214214.3308397412085
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 214210.99872557510029
Cosecant of 214211.001276051131
Cosine of 21421-0.050470046964467
Secant of 21421-19.813732305501
Tangent of 21421-19.788481191694
Cotangent of 21421-0.05053444932498
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Number parity

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

Is 21421 an Even Number?

No

Is 21421 an Odd Number?

Yes, the number 21421 is an odd number.
Total number of all odd numbers from 1 to 21421 is 10711
Sum of all the odd numbers from 1 to 21421 are 114725521
The sum of all odd numbers is a perfect square: 114725521 = 10711
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.
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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 21421 in words is "twenty-one thousand four hundred twenty-one", meaning that:
21421 is not an aban number (as it contains the letter a)
21421 is not an eban number (as it contains the letter e)
21421 is an iban number (a number without the letter i)
21421 is not an oban number (as it contains the letter o)
21421 is not a tban number (as it contains the letter t)
21421 is not an uban number (as it contains the letter u)
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Numeral systems

How to write 21421 in other number systems?
Bengali numerals২১৪২১
Eastern Arabic numerals٢١٬٤٢١
Hieroglyphs numeralsused in Ancient Egypt𓂭𓂭𓆼𓍥𓎇𓏺
Khmer numerals២១៤២១
Japanese numerals二万千四百二十一
Roman numeralsn/a
Thai numerals๒๑๔๒๑
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Translation

How do you say 21421 in 38 different languages?
Arabicواحد و عشرون ألف و أربعة مائة و واحد و عشرون
Croatiandvadeset i jedna tisuća četiristo dvadeset i jedan
Czechdvacet jedna tisíc čtyři sta dvacet jeden
Danish en og tyve tusinde fire hundrede en og tyve
Dutchéénentwintigduizend vierhonderdéénentwintig
Estonianakpe blaeve vɔ ɖekɛ alafa ene blaeve vɔ ɖekɛ
Faroesetjúgo­eitt tusin og fýre­hundrað­og­tjúgo­ein
Filipinodalawáng pû’t isáng libó’t ápat na daán at dalawáng pû’t isá
Finnishkaksi­kymmentä­yksi­tuhatta­neljä­sataa­kaksi­kymmentä­yksi
Frenchvingt et un mille quatre cent vingt et un
Greekείκοσι μία χίλιάδες τετρακόσια είκοσι ένα
Germanein­und­zwanzig­tausend­vier­hundert­ein­und­zwanzig
Hebrewעשרים ואחד אלף ארבע מאות עשרים ואחת
Hindiइक्कीस हज़ार चार सौ इक्कीस
Hungarianhuszon­egy­ezer­négy­száz­huszon­egy
Icelandictuttugu og eitt þúsund og fjögur­hundrað og tuttugu og einn
Indonesiandua puluh satu ribu empat ratus dua puluh satu
Italianventunomilaquattrocentoventuno
Japanese二万千四百二十一
Korean이만 천사백이십일
Latviandivdesmit viens tūkstoši četrsimt divdesmit viens
Lithuaniandvidešimt vienas tūkstantis keturi šimtai dvidešimt vienas
Norwegiantjue­ett tusen fire hundre og tjue­én
Persianبیست و یک هزار و چهارصد و بیست و یک
Polishdwadzieścia jeden tysięcy czterysta dwadzieścia jeden
Portuguesevinte e um mil quatrocentos e vinte e um
Romaniandouăzeci şi una mii patru sute douăzeci şi unu
Russianдвадцать одна тысяча четыреста двадцать один
Serbianдвадесет и једна хиљада четиристо двадесет и један
Slovakdvadsať­jedna tisíc štyri­sto dvadsať­jeden
Slovenedvaset ena tisuću štiristo dvaset ena
Spanish veintiún mil cuatrocientos veintiuno
Swahilielfu ishirini na moja, mia nne na ishirini na moja
Swedishtjugoentusenfyrahundratjugoen
Thaiสอง​หมื่น​หนึ่ง​พัน​สี่​ร้อย​ยี่​สิบ​เอ็ด
Turkishyirmi bir bin dört yüz yirmi bir
Ukrainianдвадцять одна тисяча чотириста двадцять один
Vietnamesehai mươi mốt nghìn bốn trăm hai mươi mốt
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Miscellaneous

Number 21421 reversed12412
Unicode CharacterU+53AD
Unix TimestampThu, 01 Jan 1970 05:57:01 +0000
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