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Number 165 (one hundred sixty-five) is an odd three-digits composite number and natural number following 164 and preceding 166.

Properties of the number 165

Cardinalone hundred sixty-five
one hundred sixty-five
Number of digits3
Sum of digits12
Product of digits30
Number parityOdd
Calculation was done in 0.0000479221 seconds

Prime Factorization of 165

Prime factorization3 x 5 x 11
Prime factors3, 5, 11
Number of distinct prime factors ω(n)3
Total number of prime factors Ω(n)3
Sum of prime factors19
Product of prime factors165
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Divisors of 165

List of proper divisors 1, 3, 5, 11, 15, 33, 55
List of all dividers1, 3, 5, 11, 15, 33, 55, 165
Number of divisors d(n)8
Sum of all divisors σ(n)288
Aliquot sum 123
165 is a deficient number , since it is larger than the sum of its proper divisors (123). Its deficiency is 42.
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Prime numbers

Is 165 a prime number?No
Is 165 a semiprime number?No
Is 165 a Chen prime number?No
Is 165 a Mersenne prime number?No
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Is 165 a Catalan number?No
Is 165 a Fibonacci number?No
Is 165 a Idoneal number?Yes: I42
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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.
165 is not a Happy number
165 is not a Humble number
165 is not a Münchhausen number
165 is not a Perfect number
165 is not a Perfect square
165 is not a Palindrome
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Numeric Bases of 165

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 165 (n2)27225
Cube of 165 (n3)4492125
Square root of 16512.845232578665
Natural Logarithm (ln) of 1655.1059454739006
Decimal Logarithm (log) of 1652.2174839442139
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Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 1650.99779727944989
Cosecant of 1651.0022075832391
Cosine of 165-0.066336936335624
Secant of 165-15.074558085417
Tangent of 165-15.041353046539
Cotangent of 165-0.06648338064441
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Number parity

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

Is 165 an Even Number?


Is 165 an Odd Number?

Yes, the number 165 is an odd number.
Total number of all odd numbers from 1 to 165 is 83
Sum of all the odd numbers from 1 to 165 are 6889
The sum of all odd numbers is a perfect square: 6889 = 83
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 165 in words is "one hundred sixty-five", meaning that:
165 is an aban number (a number without the letter a)
165 is not an eban number (as it contains the letter e)
165 is not an iban number (as it contains the letter i)
165 is not an oban number (as it contains the letter o)
165 is not a tban number (as it contains the letter t)
165 is not an uban number (as it contains the letter u)
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Numeral systems

How to write 165 in other number systems?
Bengali numerals১৬৫
Eastern Arabic numerals١٦٥
Hieroglyphs numeralsused in Ancient Egypt𓍢𓎋𓏾
Khmer numerals១៦៥
Japanese numerals百六十五
Roman numeralsCLXV
Thai numerals๑๖๕
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How do you say 165 in 38 different languages?
Arabicمائة و خمسة و ستون
Croatiansto šezdeset i pet
Czechsto šedesát pět
Danish et hundrede fem og tres
Estonianalafa ɖeka blaade vɔ atɔ̃
Filipinoisáng daán at anim na pû’t limá
Frenchcent soixante-cinq
Greekεκατόν εξήντα πέντε
Hebrewמאה שישים וחמש
Hindiएक सौ पैंसठ
Icelandiceitt­hundrað og sextíu og fimm
Indonesianseratus enam puluh lima
Latviansimt sešdesmit pieci
Lithuanianšimtas šešiasdešimt penki
Norwegianhundre og seksti­fem
Persianصد و شصت و پنج
Polishsto sześćdziesiąt pięć
Portuguesecento e sessenta e cinco
Romanianuna sută şasezeci şi cinci
Russianсто шестьдесят пять
Serbianсто шездесет и пет
Slovakjedna­sto šesťdesiat­päť
Slovenesto šestdeset pet
Spanish ciento sesenta y cinco
Swahilimia moja na sitini na tano
Turkishyüz altmış beş
Ukrainianсто шістдесят пʼять
Vietnamesemột trăm sáu mươi lăm
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Number 165 reversed561
ASCII Code165¥
Unicode CharacterU+00A5¥
Hexadecimal color (shorthand)#116655
Unix TimestampThu, 01 Jan 1970 00:02:45 +0000
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