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1291

Number 1291 is an odd four-digits prime number and natural number following 1290 and preceding 1292.

Properties of the number 1291

Nominal1291
Cardinalone thousand two hundred ninety-one
Cardinal
one thousand two hundred ninety-one
Ordinal1,291st
Number of digits4
Sum of digits13
Product of digits18
Number parityOdd
Calculation was done in 0.0000460148 seconds

Prime Factorization of 1291

Prime factorization1291
Prime factors1291
Number of distinct prime factors ω(n)1
Total number of prime factors Ω(n)1
Sum of prime factors1291
Product of prime factors1291
Calculation was done in 0.0001139641 seconds

Divisors of 1291

List of proper divisors 1
List of all dividers1, 1291
Number of divisors d(n)2
Sum of all divisors σ(n)1292
Aliquot sum 1
1291 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 1290.
Calculation was done in 0.0000178814 seconds

Prime numbers

Is 1291 a prime number?Yes
Is 1291 a semiprime number?No
Is 1291 a Chen prime number?Yes
Is 1291 a Mersenne prime number?No
Calculation was done in 0.0008850098 seconds

Sequences

Is 1291 a Catalan number?No
Is 1291 a Fibonacci number?No
Is 1291 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.
1291 is not a Happy number
1291 is not a Humble number
1291 is not a Münchhausen number
1291 is not a Perfect number
1291 is not a Perfect square
1291 is not a Palindrome
Calculation was done in 0.0108258724 seconds

Numeric Bases of 1291

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
2Binary101000010112
3Ternary12022113
4Quaternary1100234
5Quinary201315
6Senary55516
7Septenary35237
8Octal24138
9Nonary16849
10Decimal1291
12Duodecimal8b712
16Hexadecimal50b16
20Vigesimal34b20
36Base36zv36
60SexagesimalLV60
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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 1291 (n2)1666681
Cube of 1291 (n3)2151685171
Square root of 129135.930488446443
Natural Logarithm (ln) of 12917.1631723908466
Decimal Logarithm (log) of 12913.1109262422664
Calculation was done in 0.0000059605 seconds

Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 12910.19335509146606
Cosecant of 12915.1718317444748
Cosine of 1291-0.98112884403841
Secant of 1291-1.0192341261561
Tangent of 1291-0.19707410768824
Cotangent of 1291-5.0742333010177
Calculation was done in 0.0000181198 seconds

Number parity

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

Is 1291 an Even Number?

No

Is 1291 an Odd Number?

Yes, the number 1291 is an odd number.
Total number of all odd numbers from 1 to 1291 is 646
Sum of all the odd numbers from 1 to 1291 are 417316
The sum of all odd numbers is a perfect square: 417316 = 646
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.
Calculation was done in 0.0000090599 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 1291 in words is "one thousand two hundred ninety-one", meaning that:
1291 is not an aban number (as it contains the letter a)
1291 is not an eban number (as it contains the letter e)
1291 is not an iban number (as it contains the letter i)
1291 is not an oban number (as it contains the letter o)
1291 is not a tban number (as it contains the letter t)
1291 is not an uban number (as it contains the letter u)
Calculation was done in 0.0000028610 seconds

Numeral systems

How to write 1291 in other number systems?
Bengali numerals১২৯১
Eastern Arabic numerals١٬٢٩١
Hieroglyphs numeralsused in Ancient Egypt𓆼𓍣𓎎𓏺
Khmer numerals១២៩១
Japanese numerals千二百九十一
Roman numeralsMCCXCI
Thai numerals๑๒๙๑
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Translation

How do you say 1291 in 38 different languages?
Arabicألف و مائتان و واحد و تسعون
Croatiantisuću dvjesto devedeset i jedan
Czechjedna tisíc dvě stě devadesát jeden
Danish et tusind to hundrede en og halvfems
Dutchduizend tweehonderdéénennegentig
Estonianakpe ɖeka alafa eve blaasieke vɔ ɖekɛ
Faroeseeitt tusin og tvey­hundrað­og­níti­ein
Filipinoisáng libó’t dalawáng daán at siyám na pû’t isá
Finnishtuhat­kaksi­sataa­yhdeksän­kymmentä­yksi
Frenchmille deux cent quatre-vingt-onze
Greekχίλια διακόσια εννενήντα ένα
Germanein­tausend­zwei­hundert­ein­und­neunzig
Hebrewאלף מאתיים תשעים ואחת
Hindiएक हज़ार दो सौ इक्यानबे
Hungarianezer­két­száz­kilencven­egy
Icelandiceitt þúsund og tvö­hundrað og níutíu og einn
Indonesianseribu dua ratus sembilan puluh satu
Italianmilleduecentonovantuno
Japanese千二百九十一
Korean천이백구십일
Latviantūkstoš divsimt deviņdesmit viens
Lithuaniantūkstantis du šimtai devyniasdešimt vienas
Norwegiantusen to hundre og nitti­én
Persianیک هزار و دویست و نود و یک
Polishtysiąc dwieście dziewięćdziesiąt jeden
Portuguesemil duzentos e noventa e um
Romanianuna mie două sute nouăzeci şi unu
Russianодна тысяча двести девяносто один
Serbianједна хиљаду двеста деведесет и један
Slovakjedna tisíc dve­sto deväťdesiat­jeden
Slovenetisuću dvjesto devetdeset ena
Spanish mil doscientos noventa y uno
Swahilielfu moja, mia mbili na tisini na moja
Swedishentusentvåhundranittioen
Thaiหนึ่ง​พัน​สอง​ร้อย​เก้า​สิบ​เอ็ด
Turkishbin iki yüz doksan bir
Ukrainianодна тисяча двісті девʼяносто один
Vietnamesemột nghìn hai trăm chín mươi mốt
Calculation was done in 0.0221819878 seconds

Miscellaneous

Number 1291 reversed1921
Unicode CharacterU+050Bԋ
Unix TimestampThu, 01 Jan 1970 00:21:31 +0000
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