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# 121

Number 121 (one hundred twenty-one) is an odd three-digits composite number and natural number following 120 and preceding 122.

## Properties of the number 121

 Nominal 121 Cardinal one hundred twenty-one Cardinalone hundred twenty-one Ordinal 121st Number of digits 3 Sum of digits 4 Product of digits 2 Number parity Odd
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## Prime Factorization of 121

 Prime factorization 11 x 11 Prime factorization in exponent form 112 Prime factors 11 Number of distinct prime factors ω(n) 1 Total number of prime factors Ω(n) 2 Sum of prime factors 11 Product of prime factors 11
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## Divisors of 121

 List of proper divisors 1, 11 List of all dividers 1, 11, 121 Number of divisors d(n) 3 Sum of all divisors σ(n) 133 Aliquot sum 12 121 is a deficient number , since it is larger than the sum of its proper divisors (12). Its deficiency is 109.
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## Prime numbers

 Is 121 a prime number? No Is 121 a semiprime number? Yes Is 121 a Chen prime number? No Is 121 a Mersenne prime number? No
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## Sequences

 Is 121 a Catalan number? No Is 121 a Fibonacci number? No Is 121 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.
 121 is not a Happy number 121 is not a Humble number 121 is not a Münchhausen number 121 is not a Perfect number 121 is a Perfect square 121 is a Palindrome
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## Numeric Bases of 121

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
2Binary11110012
3Ternary111113
4Quaternary13214
5Quinary4415
6Senary3216
7Septenary2327
8Octal1718
9Nonary1449
10Decimal121
12Duodecimala112
20Vigesimal6120
36Base363d36
60Sexagesimal2160
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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 121 (n2) 14641 Cube of 121 (n3) 1.77156e+06 Square root of 121 11 Natural Logarithm (ln) of 121 4.79579 Decimal Logarithm (log) of 121 2.08279
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 121 0.998815 Cosecant of 121 1.00119 Cosine of 121 -0.0486636 Secant of 121 -20.5492 Tangent of 121 -20.5249 Cotangent of 121 -0.0487213
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## Number parity

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

No

### Is 121 an Odd Number?

Yes, the number 121 is an odd number.
Total number of all odd numbers from 1 to 121 is 61
Sum of all the odd numbers from 1 to 121 are 3721
The sum of all odd numbers is a perfect square: 3721 = 61
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 121 in words is "one hundred twenty-one", meaning that: 121 is an aban number (a number without the letter a) 121 is not an eban number (as it contains the letter e) 121 is an iban number (a number without the letter i) 121 is not an oban number (as it contains the letter o) 121 is not a tban number (as it contains the letter t) 121 is not an uban number (as it contains the letter u)
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## Numeral systems

How to write 121 in other number systems?
 Bengali numerals ১২১ Eastern Arabic numerals ١٢١ Hieroglyphs numeralsused in Ancient Egypt 𓍢𓎇𓏺 Khmer numerals ១២១ Japanese numerals 百二十一 Roman numerals CXXI Thai numerals ๑๒๑
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## Translation

How do you say 121 in 38 different languages?
 Arabic مائة و واحد و عشرون Croatian sto dvadeset i jedan Czech sto dvacet jeden Danish et hundrede en og tyve Dutch honderdéénentwintig Estonian alafa ɖeka blaeve vɔ ɖekɛ Faroese eitt­hundrað­og­tjúgo­ein Filipino isáng daán at dalawáng pû’t isá Finnish sata­kaksi­kymmentä­yksi French cent vingt et un Greek εκατόν είκοσι ένα German ein­hundert­ein­und­zwanzig Hebrew מאה עשרים ואחת Hindi एक सौ इक्कीस Hungarian száz­huszon­egy Icelandic eitt­hundrað og tuttugu og einn Indonesian seratus dua puluh satu Italian centoventuno Japanese 百二十一 Korean 백이십일 Latvian simt divdesmit viens Lithuanian šimtas dvidešimt vienas Norwegian hundre og tjue­én Persian صد و بیست و یک Polish sto dwadzieścia jeden Portuguese cento e vinte e um Romanian una sută douăzeci şi unu Russian сто двадцать один Serbian сто двадесет и један Slovak jedna­sto dvadsať­jeden Slovene sto dvaset ena Spanish ciento veintiuno Swahili mia moja na ishirini na moja Swedish enhundratjugoen Thai หนึ่ง​ร้อย​ยี่​สิบ​เอ็ด Turkish yüz yirmi bir Ukrainian сто двадцять один Vietnamese một trăm hai mươi mốt
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## Miscellaneous

 Number 121 reversed 121 ASCII Code 121 y Unicode Character U+0079 y Hexadecimal color (shorthand) #112211 Unix Timestamp Thu, 01 Jan 1970 00:02:01 +0000
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