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# 145

Number 145 (one hundred forty-five) is an odd three-digits composite number and natural number following 144 and preceding 146.

## Properties of the number 145

 Nominal 145 Cardinal one hundred forty-five Cardinalone hundred forty-five Ordinal 145th Number of digits 3 Sum of digits 10 Product of digits 20 Number parity Odd
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## Prime Factorization of 145

 Prime factorization 5 x 29 Prime factors 5, 29 Number of distinct prime factors ω(n) 2 Total number of prime factors Ω(n) 2 Sum of prime factors 34 Product of prime factors 145
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## Divisors of 145

 List of proper divisors 1, 5, 29 List of all dividers 1, 5, 29, 145 Number of divisors d(n) 4 Sum of all divisors σ(n) 180 Aliquot sum 35 145 is a deficient number , since it is larger than the sum of its proper divisors (35). Its deficiency is 110.
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## Prime numbers

 Is 145 a prime number? No Is 145 a semiprime number? Yes Is 145 a Chen prime number? No Is 145 a Mersenne prime number? No
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## Sequences

 Is 145 a Catalan number? No Is 145 a Fibonacci number? No Is 145 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.
 145 is not a Happy number 145 is not a Humble number 145 is not a Münchhausen number 145 is not a Perfect number 145 is not a Perfect square 145 is not a Palindrome
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## Numeric Bases of 145

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
2Binary100100012
3Ternary121013
4Quaternary21014
5Quinary10405
6Senary4016
7Septenary2657
8Octal2218
9Nonary1719
10Decimal145
12Duodecimal10112
20Vigesimal7520
36Base364136
60Sexagesimal2P60
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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 145 (n2) 21025 Cube of 145 (n3) 3.04862e+06 Square root of 145 12.0416 Natural Logarithm (ln) of 145 4.97673 Decimal Logarithm (log) of 145 2.16137
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## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 145 0.467745 Cosecant of 145 2.13792 Cosine of 145 0.883863 Secant of 145 1.1314 Tangent of 145 0.529205 Cotangent of 145 1.88963
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## Number parity

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

No

### Is 145 an Odd Number?

Yes, the number 145 is an odd number.
Total number of all odd numbers from 1 to 145 is 73
Sum of all the odd numbers from 1 to 145 are 5329
The sum of all odd numbers is a perfect square: 5329 = 73
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 145 in words is "one hundred forty-five", meaning that: 145 is an aban number (a number without the letter a) 145 is not an eban number (as it contains the letter e) 145 is not an iban number (as it contains the letter i) 145 is not an oban number (as it contains the letter o) 145 is not a tban number (as it contains the letter t) 145 is not an uban number (as it contains the letter u)
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## Numeral systems

How to write 145 in other number systems?
 Bengali numerals ১৪৫ Eastern Arabic numerals ١٤٥ Hieroglyphs numeralsused in Ancient Egypt 𓍢𓎉𓏾 Khmer numerals ១៤៥ Japanese numerals 百四十五 Roman numerals CXLV Thai numerals ๑๔๕
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## Translation

How do you say 145 in 38 different languages?
 Arabic مائة و خمسة و أربعون Croatian sto četrdeset i pet Czech sto čtyřicet pět Danish et hundrede fem og fyrre Dutch honderdvijfenveertig Estonian alafa ɖeka blaene vɔ atɔ̃ Faroese eitt­hundrað­og­fýrati­fimm Filipino isáng daán at ápat na pû’t limá Finnish sata­neljä­kymmentä­viisi French cent quarante-cinq Greek εκατόν σαράντα πέντε German ein­hundert­fünf­und­vierzig Hebrew מאה ארבעים וחמש Hindi एक सौ पैंतालीस Hungarian száz­negyven­öt Icelandic eitt­hundrað og fjörutíu og fimm Indonesian seratus empat puluh lima Italian centoquarantacinque Japanese 百四十五 Korean 백사십오 Latvian simt četrdesmit pieci Lithuanian šimtas keturiasdešimt penki Norwegian hundre og førti­fem Persian صد و چهل و پنج Polish sto czterdzieści pięć Portuguese cento e quarenta e cinco Romanian una sută patruzeci şi cinci Russian сто сорок пять Serbian сто четрдесет и пет Slovak jedna­sto štyridsať­päť Slovene sto štirideset pet Spanish ciento cuarenta y cinco Swahili mia moja na arobaini na tano Swedish enhundrafyrtiofem Thai หนึ่ง​ร้อย​สี่​สิบ​ห้า Turkish yüz kırk beş Ukrainian сто сорок пʼять Vietnamese một trăm bốn mươi lăm
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## Miscellaneous

 Number 145 reversed 541 ASCII Code 145 ‘ Unicode Character U+0091 ‘ Hexadecimal color (shorthand) #114455 Unix Timestamp Thu, 01 Jan 1970 00:02:25 +0000
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