81988

Number 81988 is an even five-digits composite number and natural number following 81987 and preceding 81989.

Properties of the number 81988

Nominal	81988
Cardinal	eighty-one thousand nine hundred eighty-eight
Cardinal eighty-one thousand nine hundred eighty-eight
Ordinal	81,988th
Number of digits	5
Sum of digits	34
Product of digits	4608
Number parity	Even

Previous number is 81987

Next number is 81989

Calculation was done in 0.0000350475 seconds

Prime Factorization of 81988

Prime factorization	2 x 2 x 103 x 199
Prime factorization in exponent form	2² x 103 x 199
Prime factors	2, 103, 199
Number of distinct prime factors ω(n)	3
Total number of prime factors Ω(n)	4
Sum of prime factors	304
Product of prime factors	40994

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Divisors of 81988

List of proper divisors	1, 2, 4, 103, 199, 206, 398, 412, 796, 20497, 40994
List of all dividers	1, 2, 4, 103, 199, 206, 398, 412, 796, 20497, 40994, 81988
Number of divisors d(n)	12
Sum of all divisors σ(n)	145600
Aliquot sum	63612
81988 is a deficient number , since it is larger than the sum of its proper divisors (63612). Its deficiency is 18376.

Calculation was done in 0.0000300407 seconds

Prime numbers

Is 81988 a prime number?	No
Is 81988 a semiprime number?	No
Is 81988 a Chen prime number?	No
Is 81988 a Mersenne prime number?	No

Previous prime is 81973

Next prime is 82003

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Sequences

Is 81988 a Catalan number?	No
Is 81988 a Fibonacci number?	No
Is 81988 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.

81988 is not a Happy number

81988 is not a Humble number

81988 is not a Münchhausen number

81988 is not a Perfect number

81988 is not a Perfect square

81988 is not a Palindrome

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Numeric Bases of 81988

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	10100000001000100₂
3	Ternary	11011110121₃
4	Quaternary	110001010₄
5	Quinary	10110423₅
6	Senary	1431324₆
7	Septenary	461014₇
8	Octal	240104₈
9	Nonary	134417₉
10	Decimal	81988
12	Duodecimal	3b544₁₂
16	Hexadecimal	14044₁₆
20	Vigesimal	a4j8₂₀
36	Base36	1r9g₃₆
60	Sexagesimal	MkS₆₀

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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 81988 (n²)	6722032144
Cube of 81988 (n³)	551125971422272
Square root of 81988	286.33546759003
Natural Logarithm (ln) of 81988	11.314328174074
Decimal Logarithm (log) of 81988	4.9137502924428

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Trigonometry

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

Sine of 81988	-0.95945814182286
Cosecant of 81988	-1.0422549524673
Cosine of 81988	0.28185115591358
Secant of 81988	3.54797196683
Tangent of 81988	-3.4041305905343
Cotangent of 81988	-0.29376076310957

Calculation was done in 0.0000069141 seconds

Number parity

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

Is 81988 an Even Number?

Yes, the number 81988 is an even number.

Is 81988 an Odd Number?

Previous even number is 81986

Next even number is 81990

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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 81988 in words is "eighty-one thousand nine hundred eighty-eight", meaning that:

81988 is not an aban number (as it contains the letter a)

81988 is not an eban number (as it contains the letter e)

81988 is not an iban number (as it contains the letter i)

81988 is not an oban number (as it contains the letter o)

81988 is not a tban number (as it contains the letter t)

81988 is not an uban number (as it contains the letter u)

Calculation was done in 0.0000030994 seconds

Numeral systems

How to write 81988 in other number systems?

Bengali numerals	৮১৯৮৮
Eastern Arabic numerals	٨١٬٩٨٨
Hieroglyphs numeralsused in Ancient Egypt	𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓆼𓍪𓎍𓐁
Khmer numerals	៨១៩៨៨
Japanese numerals	八万千九百八十八
Roman numerals	n/a
Thai numerals	๘๑๙๘๘

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Translation

How do you say 81988 in 38 different languages?

Arabic	واحد و ثمانون ألف و تسعة مائة و ثمانية و ثمانون
Croatian	osamdeset i jedna tisuća devetsto osamdeset i osam
Czech	osmdesát jedna tisíc devět set osmdesát osm
Danish	en og firs tusinde ni hundrede otte og firs
Dutch	éénentachtigduizend negenhonderdachtentachtig
Estonian	akpe blaenyi vɔ ɖekɛ alafa asieke blaenyi vɔ enyi
Faroese	áttatieitt tusin og níggjuhundraðogáttatiátta
Filipino	walóng pû’t isáng libó’t siyám na daán at walóng pû’t waló
Finnish	kahdeksankymmentäyksituhattayhdeksänsataakahdeksankymmentäkahdeksan
French	quatre-vingt-un mille neuf cent quatre-vingt-huit
Greek	ογδόντα μία χίλιάδες εννιακόσια ογδόντα οκτώ
German	einundachtzigtausendneunhundertachtundachtzig
Hebrew	שמונים ואחד אלף תשע מאות שמונים ושמונה
Hindi	इक्यासी हज़ार नौ सौ अट्ठासी
Hungarian	nyolcvanegyezerkilencszáznyolcvannyolc
Icelandic	áttatíu og eitt þúsund og níuhundrað og áttatíu og átta
Indonesian	delapan puluh satu ribu sembilan ratus delapan puluh delapan
Italian	ottant e unmilanovecentoottantotto
Japanese	八万千九百八十八
Korean	팔만 천구백팔십팔
Latvian	astoņdesmit viens tūkstoši deviņsimt astoņdesmit astoņi
Lithuanian	aštuoniasdešimt vienas tūkstantis devyni šimtai aštuoniasdešimt aštuoni
Norwegian	åttiett tusen ni hundre og åttiåtte
Persian	هشتاد و یک هزار و نهصد و هشتاد و هشت
Polish	osiemdziesiąt jeden tysięcy dziewięćset osiemdziesiąt osiem
Portuguese	oitenta e um mil novecentos e oitenta e oito
Romanian	optzeci şi una mii nouă sute optzeci şi opt
Russian	восемьдесят одна тысяча девятьсот восемьдесят восемь
Serbian	осамдесет и једна хиљада деветсто осамдесет и осам
Slovak	osemdesiatjedna tisíc deväťsto osemdesiatosem
Slovene	osemdeset ena tisuću devetsto osemdeset osem
Spanish	ochenta y un mil novecientos ochenta y ocho
Swahili	elfu themanini na moja, mia tisa na themanini na nane
Swedish	åttioentusenniohundraåttioåtta
Thai	แปดหมื่นหนึ่งพันเก้าร้อยแปดสิบแปด
Turkish	seksen bir bin dokuz yüz seksen sekiz
Ukrainian	вісімдесят одна тисяча девʼятсот вісімдесят вісім
Vietnamese	tám mươi mốt nghìn chín trăm tám mươi tám

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Miscellaneous

Number 81988 reversed	88918
Unicode Character	U+14044	𔁄
Unix Timestamp	Thu, 01 Jan 1970 22:46:28 +0000

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