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Number 129 (one hundred twenty-nine) is an odd three-digits composite number and natural number following 128 and preceding 130.

Properties of the number 129

Cardinalone hundred twenty-nine
one hundred twenty-nine
Number of digits3
Sum of digits12
Product of digits18
Number parityOdd
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Prime Factorization of 129

Prime factorization3 x 43
Prime factors3, 43
Number of distinct prime factors ω(n)2
Total number of prime factors Ω(n)2
Sum of prime factors46
Product of prime factors129
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Divisors of 129

List of proper divisors 1, 3, 43
List of all dividers1, 3, 43, 129
Number of divisors d(n)4
Sum of all divisors σ(n)176
Aliquot sum 47
129 is a deficient number , since it is larger than the sum of its proper divisors (47). Its deficiency is 82.
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Prime numbers

Is 129 a prime number?No
Is 129 a semiprime number?Yes
Is 129 a Chen prime number?No
Is 129 a Mersenne prime number?No
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Is 129 a Catalan number?No
Is 129 a Fibonacci number?No
Is 129 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.
129 is a Happy number
129 is not a Humble number
129 is not a Münchhausen number
129 is not a Perfect number
129 is not a Perfect square
129 is not a Palindrome
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Numeric Bases of 129

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.
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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 129 (n2)16641
Cube of 129 (n3)2146689
Square root of 12911.357816691601
Natural Logarithm (ln) of 1294.8598124043617
Decimal Logarithm (log) of 1292.1105897102992
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Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 129-0.19347339203847
Cosecant of 129-5.16866939409
Cosine of 129-0.98110552264939
Secant of 129-1.0192583538818
Tangent of 1290.19719937108907
Cotangent of 1295.0710100872905
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Number parity

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

Is 129 an Even Number?


Is 129 an Odd Number?

Yes, the number 129 is an odd number.
Total number of all odd numbers from 1 to 129 is 65
Sum of all the odd numbers from 1 to 129 are 4225
The sum of all odd numbers is a perfect square: 4225 = 65
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.
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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 129 in words is "one hundred twenty-nine", meaning that:
129 is an aban number (a number without the letter a)
129 is not an eban number (as it contains the letter e)
129 is not an iban number (as it contains the letter i)
129 is not an oban number (as it contains the letter o)
129 is not a tban number (as it contains the letter t)
129 is not an uban number (as it contains the letter u)
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Numeral systems

How to write 129 in other number systems?
Bengali numerals১২৯
Eastern Arabic numerals١٢٩
Hieroglyphs numeralsused in Ancient Egypt𓍢𓎇𓐂
Khmer numerals១២៩
Japanese numerals百二十九
Roman numeralsCXXIX
Thai numerals๑๒๙
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How do you say 129 in 38 different languages?
Arabicمائة و تسعة و عشرون
Croatiansto dvadeset i devet
Czechsto dvacet devět
Danish et hundrede ni og tyve
Estonianalafa ɖeka blaeve vɔ asieke
Filipinoisáng daán at dalawáng pû’t siyám
Frenchcent vingt-neuf
Greekεκατόν είκοσι εννέα
Hebrewמאה עשרים ותשע
Hindiएक सौ उनतीस
Icelandiceitt­hundrað og tuttugu og níu
Indonesianseratus dua puluh sembilan
Latviansimt divdesmit deviņi
Lithuanianšimtas dvidešimt devyni
Norwegianhundre og tjue­ni
Persianصد و بیست و نه
Polishsto dwadzieścia dziewięć
Portuguesecento e vinte e nove
Romanianuna sută douăzeci şi nouă
Russianсто двадцать девять
Serbianсто двадесет и девет
Slovakjedna­sto dvadsať­deväť
Slovenesto dvaset devet
Spanish ciento veintinueve
Swahilimia moja na ishirini na tisa
Turkishyüz yirmi dokuz
Ukrainianсто двадцять девʼять
Vietnamesemột trăm hai mươi chín
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Number 129 reversed921
ASCII Code129
Unicode CharacterU+0081
Hexadecimal color (shorthand)#112299
Unix TimestampThu, 01 Jan 1970 00:02:09 +0000
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