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# 20021

Number 20021 is an odd five-digits prime number and natural number following 20020 and preceding 20022.

## Properties of the number 20021

 Nominal 20021 Cardinal twenty thousand twenty-one Cardinaltwenty thousand twenty-one Ordinal 20,021st Number of digits 5 Sum of digits 5 Product of digits 0 Number parity Odd
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## Prime Factorization of 20021

 Prime factorization 20021 Prime factors 20021 Number of distinct prime factors ω(n) 1 Total number of prime factors Ω(n) 1 Sum of prime factors 20021 Product of prime factors 20021
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## Divisors of 20021

 List of proper divisors 1 List of all dividers 1, 20021 Number of divisors d(n) 2 Sum of all divisors σ(n) 20022 Aliquot sum 1 20021 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 20020.
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## Prime numbers

 Is 20021 a prime number? Yes Is 20021 a semiprime number? No Is 20021 a Chen prime number? Yes Is 20021 a Mersenne prime number? No
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## Sequences

 Is 20021 a Catalan number? No Is 20021 a Fibonacci number? No Is 20021 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.
 20021 is not a Happy number 20021 is not a Humble number 20021 is not a Münchhausen number 20021 is not a Perfect number 20021 is not a Perfect square 20021 is not a Palindrome
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## Numeric Bases of 20021

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
2Binary1001110001101012
3Ternary10001101123
4Quaternary103203114
5Quinary11200415
6Senary2324056
7Septenary1122417
8Octal470658
9Nonary304159
10Decimal20021
12Duodecimalb70512
20Vigesimal2a1120
36Base36fg536
60Sexagesimal5Xf60
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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 20021 (n2) 4.0084e+08 Cube of 20021 (n3) 8.02523e+12 Square root of 20021 141.496 Natural Logarithm (ln) of 20021 9.90454 Decimal Logarithm (log) of 20021 4.30149
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 20021 0.361598 Cosecant of 20021 2.7655 Cosine of 20021 -0.932334 Secant of 20021 -1.07258 Tangent of 20021 -0.387842 Cotangent of 20021 -2.57837
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## Number parity

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

No

### Is 20021 an Odd Number?

Yes, the number 20021 is an odd number.
Total number of all odd numbers from 1 to 20021 is 10011
Sum of all the odd numbers from 1 to 20021 are 100220121
The sum of all odd numbers is a perfect square: 100220121 = 10011
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 20021 in words is "twenty thousand twenty-one", meaning that: 20021 is not an aban number (as it contains the letter a) 20021 is not an eban number (as it contains the letter e) 20021 is an iban number (a number without the letter i) 20021 is not an oban number (as it contains the letter o) 20021 is not a tban number (as it contains the letter t) 20021 is not an uban number (as it contains the letter u)
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## Numeral systems

How to write 20021 in other number systems?
 Bengali numerals ২০০২১ Eastern Arabic numerals ٢٠٬٠٢١ Hieroglyphs numeralsused in Ancient Egypt 𓂭𓂭𓎇𓏺 Khmer numerals ២០០២១ Japanese numerals 二万二十一 Roman numerals n/a Thai numerals ๒๐๐๒๑
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## Translation

How do you say 20021 in 38 different languages?
 Arabic عشرون ألف و واحد و عشرون Croatian dvadeset tisuća dvadeset i jedan Czech dvacet tisíc dvacet jeden Danish tyve tusinde og en og tyve Dutch twintigduizend éénentwintig Estonian akpe blaeve kple blaeve vɔ ɖekɛ Faroese tjúgo tusin og tjúgo­ein Filipino dalawáng pû libó’t dalawáng pû’t isá Finnish kaksi­kymmentä­tuhatta­kaksi­kymmentä­yksi French vingt mille vingt et un Greek είκοσι χίλιάδες είκοσι ένα German zwanzig­tausend­ein­und­zwanzig Hebrew עשרים אלף עשרים ואחת Hindi बीस हज़ार इक्कीस Hungarian húsz­ezer­huszon­egy Icelandic tuttugu þúsund og tuttugu og einn Indonesian dua puluh ribu dua puluh satu Italian ventimilaventuno Japanese 二万二十一 Korean 이만 이십일 Latvian divdesmit tūkstoši divdesmit viens Lithuanian dvidešimt tūkstančių dvidešimt vienas Norwegian tjue tusen og tjue­én Persian بیست هزار و بیست و یک Polish dwadzieścia tysięcy dwadzieścia jeden Portuguese vinte mil e vinte e um Romanian douăzeci mii douăzeci şi unu Russian двадцать тысяч двадцать один Serbian двадесет хиљада двадесет и један Slovak dvadsať tisíc dvadsať­jeden Slovene dvaset tisuću dvaset ena Spanish veinte mil veintiuno Swahili elfu ishirini, ishirini na moja Swedish tjugotusentjugoen Thai สอง​หมื่น​ยี่​สิบ​เอ็ด Turkish yirmi bin yirmi bir Ukrainian двадцять тисяч двадцять один Vietnamese hai mươi nghìn không trăm hai mươi mốt
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## Miscellaneous

 Number 20021 reversed 12002 Unicode Character U+4E35 丵 Unix Timestamp Thu, 01 Jan 1970 05:33:41 +0000
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