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21028

Number 21028 is an even five-digits composite number and natural number following 21027 and preceding 21029.

Properties of the number 21028

Nominal21028
Cardinaltwenty-one thousand twenty-eight
Cardinal
twenty-one thousand twenty-eight
Ordinal21,028th
Number of digits5
Sum of digits13
Product of digits0
Number parityEven
Calculation was done in 0.0000348091 seconds

Prime Factorization of 21028

Prime factorization2 x 2 x 7 x 751
Prime factorization in exponent form22 x 7 x 751
Prime factors2, 7, 751
Number of distinct prime factors ω(n)3
Total number of prime factors Ω(n)4
Sum of prime factors760
Product of prime factors10514
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Divisors of 21028

List of proper divisors 1, 2, 4, 7, 14, 28, 751, 1502, 3004, 5257, 10514
List of all dividers1, 2, 4, 7, 14, 28, 751, 1502, 3004, 5257, 10514, 21028
Number of divisors d(n)12
Sum of all divisors σ(n)42112
Aliquot sum 21084
21028 is an abundant number , because the sum of its proper divisors (21084) is greater than itself. Its abundance is 56.
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Prime numbers

Is 21028 a prime number?No
Is 21028 a semiprime number?No
Is 21028 a Chen prime number?No
Is 21028 a Mersenne prime number?No
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Sequences

Is 21028 a Catalan number?No
Is 21028 a Fibonacci number?No
Is 21028 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.
21028 is not a Happy number
21028 is not a Humble number
21028 is not a Münchhausen number
21028 is not a Perfect number
21028 is not a Perfect square
21028 is not a Palindrome
Calculation was done in 0.0050051212 seconds

Numeric Bases of 21028

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
2Binary1010010001001002
3Ternary10012112113
4Quaternary110202104
5Quinary11331035
6Senary2412046
7Septenary1152107
8Octal510448
9Nonary317549
10Decimal21028
12Duodecimal1020412
16Hexadecimal522416
20Vigesimal2cb820
36Base36g8436
60Sexagesimal5oS60
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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 21028 (n2)442176784
Cube of 21028 (n3)9298093413952
Square root of 21028145.01034445859
Natural Logarithm (ln) of 210289.9536101619393
Decimal Logarithm (log) of 210284.3227979683464
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 21028-0.96880674064325
Cosecant of 21028-1.0321976076839
Cosine of 21028-0.24781747170892
Secant of 21028-4.0352279970582
Tangent of 210283.9093560835824
Cotangent of 210280.25579660144021
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Number parity

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

Is 21028 an Even Number?

Yes, the number 21028 is an even number.

Is 21028 an Odd Number?

No
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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 21028 in words is "twenty-one thousand twenty-eight", meaning that:
21028 is not an aban number (as it contains the letter a)
21028 is not an eban number (as it contains the letter e)
21028 is not an iban number (as it contains the letter i)
21028 is not an oban number (as it contains the letter o)
21028 is not a tban number (as it contains the letter t)
21028 is not an uban number (as it contains the letter u)
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Numeral systems

How to write 21028 in other number systems?
Bengali numerals২১০২৮
Eastern Arabic numerals٢١٬٠٢٨
Hieroglyphs numeralsused in Ancient Egypt𓂭𓂭𓆼𓎇𓐁
Khmer numerals២១០២៨
Japanese numerals二万千二十八
Roman numeralsn/a
Thai numerals๒๑๐๒๘
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Translation

How do you say 21028 in 38 different languages?
Arabicواحد و عشرون ألف و ثمانية و عشرون
Croatiandvadeset i jedna tisuća dvadeset i osam
Czechdvacet jedna tisíc dvacet osm
Danish en og tyve tusinde og otte og tyve
Dutchéénentwintigduizend achtentwintig
Estonianakpe blaeve vɔ ɖekɛ kple blaeve vɔ enyi
Faroesetjúgo­eitt tusin og tjúgo­átta
Filipinodalawáng pû’t isáng libó’t dalawáng pû’t waló
Finnishkaksi­kymmentä­yksi­tuhatta­kaksi­kymmentä­kahdeksan
Frenchvingt et un mille vingt-huit
Greekείκοσι μία χίλιάδες είκοσι οκτώ
Germanein­und­zwanzig­tausend­acht­und­zwanzig
Hebrewעשרים ואחד אלף עשרים ושמונה
Hindiइक्कीस हज़ार अट्ठाईस
Hungarianhuszon­egy­ezer­huszon­nyolc
Icelandictuttugu og eitt þúsund og tuttugu og átta
Indonesiandua puluh satu ribu dua puluh delapan
Italianventunomilaventotto
Japanese二万千二十八
Korean이만 천이십팔
Latviandivdesmit viens tūkstoši divdesmit astoņi
Lithuaniandvidešimt vienas tūkstantis dvidešimt aštuoni
Norwegiantjue­ett tusen og tjue­åtte
Persianبیست و یک هزار و بیست و هشت
Polishdwadzieścia jeden tysięcy dwadzieścia osiem
Portuguesevinte e um mil e vinte e oito
Romaniandouăzeci şi una mii douăzeci şi opt
Russianдвадцать одна тысяча двадцать восемь
Serbianдвадесет и једна хиљада двадесет и осам
Slovakdvadsať­jedna tisíc dvadsať­osem
Slovenedvaset ena tisuću dvaset osem
Spanish veintiún mil veintiocho
Swahilielfu ishirini na moja, ishirini na nane
Swedishtjugoentusentjugoåtta
Thaiสอง​หมื่น​หนึ่ง​พัน​ยี่​สิบ​แปด
Turkishyirmi bir bin yirmi sekiz
Ukrainianдвадцять одна тисяча двадцять вісім
Vietnamesehai mươi mốt nghìn không trăm hai mươi tám
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Miscellaneous

Number 21028 reversed82012
Unicode CharacterU+5224
Unix TimestampThu, 01 Jan 1970 05:50:28 +0000
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