23981

Number 23981 is an odd five-digits prime number and natural number following 23980 and preceding 23982.

Properties of the number 23981

Nominal	23981
Cardinal	twenty-three thousand nine hundred eighty-one
Cardinal twenty-three thousand nine hundred eighty-one
Ordinal	23,981st
Number of digits	5
Sum of digits	23
Product of digits	432
Number parity	Odd

Previous number is 23980

Next number is 23982

Calculation was done in 0.0000338554 seconds

Prime Factorization of 23981

Prime factorization	23981
Prime factors	23981
Number of distinct prime factors ω(n)	1
Total number of prime factors Ω(n)	1
Sum of prime factors	23981
Product of prime factors	23981

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Divisors of 23981

List of proper divisors	1
List of all dividers	1, 23981
Number of divisors d(n)	2
Sum of all divisors σ(n)	23982
Aliquot sum	1
23981 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 23980.

Calculation was done in 0.0000200272 seconds

Prime numbers

Is 23981 a prime number?	Yes
Is 23981 a semiprime number?	No
Is 23981 a Chen prime number?	Yes
Is 23981 a Mersenne prime number?	No

Previous prime is 23977

Next prime is 23993

Calculation was done in 0.1010031700 seconds

Sequences

Is 23981 a Catalan number?	No
Is 23981 a Fibonacci number?	No
Is 23981 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.

23981 is not a Happy number

23981 is not a Humble number

23981 is not a Münchhausen number

23981 is not a Perfect number

23981 is not a Perfect square

23981 is not a Palindrome

Calculation was done in 0.0072779655 seconds

Numeric Bases of 23981

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	101110110101101₂
3	Ternary	1012220012₃
4	Quaternary	11312231₄
5	Quinary	1231411₅
6	Senary	303005₆
7	Septenary	126626₇
8	Octal	56655₈
9	Nonary	35805₉
10	Decimal	23981
12	Duodecimal	11a65₁₂
16	Hexadecimal	5dad₁₆
20	Vigesimal	2jj1₂₀
36	Base36	ii5₃₆
60	Sexagesimal	6df₆₀

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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 23981 (n²)	575088361
Cube of 23981 (n³)	13791193985141
Square root of 23981	154.85799947048
Natural Logarithm (ln) of 23981	10.08501712913
Decimal Logarithm (log) of 23981	4.3798672890809

Calculation was done in 0.0000050068 seconds

Trigonometry

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

Sine of 23981	-0.94021980869868
Cosecant of 23981	-1.063581080454
Cosine of 23981	-0.34056821832142
Secant of 23981	-2.9362692882171
Tangent of 23981	2.7607385484553
Cotangent of 23981	0.36222191361059

Calculation was done in 0.0000138283 seconds

Number parity

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

Is 23981 an Even Number?

Is 23981 an Odd Number?

Yes, the number 23981 is an odd number.

Total number of all odd numbers from 1 to 23981 is 11991

Sum of all the odd numbers from 1 to 23981 are 143784081

The sum of all odd numbers is a perfect square: 143784081 = 11991

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 23979

Next odd number is 23983

Calculation was done in 0.0000071526 seconds

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 23981 in words is "twenty-three thousand nine hundred eighty-one", meaning that:

23981 is not an aban number (as it contains the letter a)

23981 is not an eban number (as it contains the letter e)

23981 is not an iban number (as it contains the letter i)

23981 is not an oban number (as it contains the letter o)

23981 is not a tban number (as it contains the letter t)

23981 is not an uban number (as it contains the letter u)

Calculation was done in 0.0000019073 seconds

Numeral systems

How to write 23981 in other number systems?

Bengali numerals	২৩৯৮১
Eastern Arabic numerals	٢٣٬٩٨١
Hieroglyphs numeralsused in Ancient Egypt	𓂭𓂭𓆼𓆼𓆼𓍪𓎍𓏺
Khmer numerals	២៣៩៨១
Japanese numerals	二万三千九百八十一
Roman numerals	n/a
Thai numerals	๒๓๙๘๑

Calculation was done in 0.0001571178 seconds

Translation

How do you say 23981 in 38 different languages?

Arabic	ثلاثة و عشرون ألف و تسعة مائة و واحد و ثمانون
Croatian	dvadeset i tri tisuća devetsto osamdeset i jedan
Czech	dvacet tři tisíc devět set osmdesát jeden
Danish	tre og tyve tusinde ni hundrede en og firs
Dutch	drieentwintigduizend negenhonderdéénentachtig
Estonian	akpe blaeve vɔ etɔ̃ alafa asieke blaenyi vɔ ɖekɛ
Faroese	tjúgotrý tusin og níggjuhundraðogáttatiein
Filipino	dalawáng pû’t tatlóng libó’t siyám na daán at walóng pû’t isá
Finnish	kaksikymmentäkolmetuhattayhdeksänsataakahdeksankymmentäyksi
French	vingt-trois mille neuf cent quatre-vingt-un
Greek	είκοσι τρεις χίλιάδες εννιακόσια ογδόντα ένα
German	dreiundzwanzigtausendneunhunderteinundachtzig
Hebrew	עשרים ושלושה אלף תשע מאות שמונים ואחת
Hindi	तेईस हज़ार नौ सौ इक्यासी
Hungarian	huszonháromezerkilencszáznyolcvanegy
Icelandic	tuttugu og þrjú þúsund og níuhundrað og áttatíu og einn
Indonesian	dua puluh tiga ribu sembilan ratus delapan puluh satu
Italian	ventitremilanovecentoottantuno
Japanese	二万三千九百八十一
Korean	이만 삼천구백팔십일
Latvian	divdesmit trīs tūkstoši deviņsimt astoņdesmit viens
Lithuanian	dvidešimt trys tūkstančiai devyni šimtai aštuoniasdešimt vienas
Norwegian	tjuetre tusen ni hundre og åttién
Persian	بیست و سه هزار و نهصد و هشتاد و یک
Polish	dwadzieścia trzy tysiące dziewięćset osiemdziesiąt jeden
Portuguese	vinte e três mil novecentos e oitenta e um
Romanian	douăzeci şi trei mii nouă sute optzeci şi unu
Russian	двадцать три тысячи девятьсот восемьдесят один
Serbian	двадесет и три хиљада деветсто осамдесет и један
Slovak	dvadsaťtri tisíc deväťsto osemdesiatjeden
Slovene	dvaset tri tisuću devetsto osemdeset ena
Spanish	veintitres mil novecientos ochenta y uno
Swahili	elfu ishirini na tatu, mia tisa na themanini na moja
Swedish	tjugotretusenniohundraåttioen
Thai	สองหมื่นสามพันเก้าร้อยแปดสิบเอ็ด
Turkish	yirmi üç bin dokuz yüz seksen bir
Ukrainian	двадцять три тисячі девʼятсот вісімдесят один
Vietnamese	hai mươi ba nghìn chín trăm tám mươi mốt

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Miscellaneous

Number 23981 reversed	18932
Unicode Character	U+5DAD	嶭
Unix Timestamp	Thu, 01 Jan 1970 06:39:41 +0000

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