21421

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

Properties of the number 21421

Nominal	21421
Cardinal	twenty-one thousand four hundred twenty-one
Cardinal twenty-one thousand four hundred twenty-one
Ordinal	21,421st
Number of digits	5
Sum of digits	10
Product of digits	16
Number parity	Odd

Previous number is 21420

Next number is 21422

Calculation was done in 0.0000441074 seconds

Prime Factorization of 21421

Prime factorization	31 x 691
Prime factors	31, 691
Number of distinct prime factors ω(n)	2
Total number of prime factors Ω(n)	2
Sum of prime factors	722
Product of prime factors	21421

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Divisors of 21421

List of proper divisors	1, 31, 691
List of all dividers	1, 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.

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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

Previous prime is 21419

Next prime is 21433

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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

Calculation was done in 0.0085861683 seconds

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.

Base	System	Value
2	Binary	101001110101101₂
3	Ternary	1002101101₃
4	Quaternary	11032231₄
5	Quinary	1141141₅
6	Senary	243101₆
7	Septenary	116311₇
8	Octal	51655₈
9	Nonary	32341₉
10	Decimal	21421
12	Duodecimal	10491₁₂
16	Hexadecimal	53ad₁₆
20	Vigesimal	2db1₂₀
36	Base36	gj1₃₆
60	Sexagesimal	5v1₆₀

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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 21421	146.35914730552
Natural Logarithm (ln) of 21421	9.9721270282528
Decimal Logarithm (log) of 21421	4.3308397412085

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Trigonometry

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

Sine of 21421	0.99872557510029
Cosecant of 21421	1.001276051131
Cosine of 21421	-0.050470046964467
Secant of 21421	-19.813732305501
Tangent of 21421	-19.788481191694
Cotangent of 21421	-0.05053444932498

Calculation was done in 0.0000531673 seconds

Number parity

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

Is 21421 an Even Number?

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.

Previous odd number is 21419

Next odd number is 21423

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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 numerals	২১৪২১
Eastern Arabic numerals	٢١٬٤٢١
Hieroglyphs numeralsused in Ancient Egypt	𓂭𓂭𓆼𓍥𓎇𓏺
Khmer numerals	២១៤២១
Japanese numerals	二万千四百二十一
Roman numerals	n/a
Thai numerals	๒๑๔๒๑

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Translation

How do you say 21421 in 38 different languages?

Arabic	واحد و عشرون ألف و أربعة مائة و واحد و عشرون
Croatian	dvadeset i jedna tisuća četiristo dvadeset i jedan
Czech	dvacet jedna tisíc čtyři sta dvacet jeden
Danish	en og tyve tusinde fire hundrede en og tyve
Dutch	éénentwintigduizend vierhonderdéénentwintig
Estonian	akpe blaeve vɔ ɖekɛ alafa ene blaeve vɔ ɖekɛ
Faroese	tjúgoeitt tusin og fýrehundraðogtjúgoein
Filipino	dalawáng pû’t isáng libó’t ápat na daán at dalawáng pû’t isá
Finnish	kaksikymmentäyksituhattaneljäsataakaksikymmentäyksi
French	vingt et un mille quatre cent vingt et un
Greek	είκοσι μία χίλιάδες τετρακόσια είκοσι ένα
German	einundzwanzigtausendvierhunderteinundzwanzig
Hebrew	עשרים ואחד אלף ארבע מאות עשרים ואחת
Hindi	इक्कीस हज़ार चार सौ इक्कीस
Hungarian	huszonegyezernégyszázhuszonegy
Icelandic	tuttugu og eitt þúsund og fjögurhundrað og tuttugu og einn
Indonesian	dua puluh satu ribu empat ratus dua puluh satu
Italian	ventunomilaquattrocentoventuno
Japanese	二万千四百二十一
Korean	이만 천사백이십일
Latvian	divdesmit viens tūkstoši četrsimt divdesmit viens
Lithuanian	dvidešimt vienas tūkstantis keturi šimtai dvidešimt vienas
Norwegian	tjueett tusen fire hundre og tjueén
Persian	بیست و یک هزار و چهارصد و بیست و یک
Polish	dwadzieścia jeden tysięcy czterysta dwadzieścia jeden
Portuguese	vinte e um mil quatrocentos e vinte e um
Romanian	douăzeci şi una mii patru sute douăzeci şi unu
Russian	двадцать одна тысяча четыреста двадцать один
Serbian	двадесет и једна хиљада четиристо двадесет и један
Slovak	dvadsaťjedna tisíc štyristo dvadsaťjeden
Slovene	dvaset ena tisuću štiristo dvaset ena
Spanish	veintiún mil cuatrocientos veintiuno
Swahili	elfu ishirini na moja, mia nne na ishirini na moja
Swedish	tjugoentusenfyrahundratjugoen
Thai	สองหมื่นหนึ่งพันสี่ร้อยยี่สิบเอ็ด
Turkish	yirmi bir bin dört yüz yirmi bir
Ukrainian	двадцять одна тисяча чотириста двадцять один
Vietnamese	hai mươi mốt nghìn bốn trăm hai mươi mốt

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Miscellaneous

Number 21421 reversed	12412
Unicode Character	U+53AD	厭
Unix Timestamp	Thu, 01 Jan 1970 05:57:01 +0000

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