We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from. For more information, please review our cookie policy and privacy policy.
By choosing I Accept, you consent to our use of cookies and other tracking technologies.

# 13

Number 13 (thirteen) is an odd two-digits prime number and natural number following 12 and preceding 14.

## Properties of the number 13

 Nominal 13 Cardinal thirteen Ordinal 13th Number of digits 2 Sum of digits 4 Product of digits 3 Number parity Odd
Calculation was done in 0.0000350475 seconds

## Prime Factorization of 13

 Prime factorization 13 Prime factors 13 Number of distinct prime factors ω(n) 1 Total number of prime factors Ω(n) 1 Sum of prime factors 13 Product of prime factors 13
Calculation was done in 0.0000069141 seconds

## Divisors of 13

 List of proper divisors 1 List of all dividers 1, 13 Number of divisors d(n) 2 Sum of all divisors σ(n) 14 Aliquot sum 1 13 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 12.
Calculation was done in 0.0000238419 seconds

## Prime numbers

 Is 13 a prime number? Yes Is 13 a semiprime number? No Is 13 a Chen prime number? Yes Is 13 a Mersenne prime number? Yes: M4
Calculation was done in 0.0000081062 seconds

## Sequences

 Is 13 a Catalan number? No Is 13 a Fibonacci number? Yes Is 13 a Idoneal number? Yes: I11
Calculation was done in 0.0000040531 seconds

## Number theory

Number theory is a branch of pure mathematics devoted primarily to the study of the integers and integer-valued functions.
 13 is a Happy number 13 is not a Humble number 13 is not a Münchhausen number 13 is not a Perfect number 13 is not a Perfect square 13 is not a Palindrome
Calculation was done in 0.0013370514 seconds

## Numeric Bases of 13

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
2Binary11012
3Ternary1113
4Quaternary314
5Quinary235
6Senary216
7Septenary167
8Octal158
9Nonary149
10Decimal13
12Duodecimal1112
16Hexadecimald16
20Vigesimald20
36Base36d36
60SexagesimalD60
Calculation was done in 0.0000169277 seconds

## Mathematical operations

Mathematical operations are actions that are performed on numbers or mathematical expressions to find a numerical result.
 Square of 13 (n2) 169 Cube of 13 (n3) 2197 Square root of 13 3.60555 Natural Logarithm (ln) of 13 2.56495 Decimal Logarithm (log) of 13 1.11394
Calculation was done in 0.0000050068 seconds

## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 13 0.420167 Cosecant of 13 2.38001 Cosine of 13 0.907447 Secant of 13 1.10199 Tangent of 13 0.463021 Cotangent of 13 2.15973
Calculation was done in 0.0000112057 seconds

## Number parity

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

No

### Is 13 an Odd Number?

Yes, the number 13 is an odd number.
Total number of all odd numbers from 1 to 13 is 7
Sum of all the odd numbers from 1 to 13 are 49
The sum of all odd numbers is a perfect square: 49 = 7
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 0.0000059605 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 13 in words is "thirteen", meaning that: 13 is an aban number (a number without the letter a) 13 is not an eban number (as it contains the letter e) 13 is not an iban number (as it contains the letter i) 13 is an oban number (a number without the letter o) 13 is not a tban number (as it contains the letter t) 13 is an uban number (a number without the letter u)
Calculation was done in 0.0000019073 seconds

## Numeral systems

How to write 13 in other number systems?
 Bengali numerals ১৩ Eastern Arabic numerals ١٣ Hieroglyphs numeralsused in Ancient Egypt 𓎆𓏼 Khmer numerals ១៣ Japanese numerals 十三 Roman numerals XIII Thai numerals ๑๓
Calculation was done in 0.0000638962 seconds

## Translation

How do you say 13 in 38 different languages?
 Arabic ثلاثة عشر Croatian trinaest Czech třináct Danish tretten Dutch dertien Estonian wuietɔ̃ Faroese trettan Filipino labíng-tatló Finnish kolmetoista French treize Greek δεκα­τρία German dreizehn Hebrew שלוש עשרה Hindi तेरह Hungarian tizen­három Icelandic þrettán Indonesian tiga belas Italian tredici Japanese 十三 Korean 십삼 Latvian trīspadsmit Lithuanian trylika Norwegian tretten Persian سیزده Polish trzynaście Portuguese treze Romanian treisprezece Russian тринадцать Serbian тринаест Slovak trinásť Slovene trinajst Spanish trece Swahili kumi na tatu Swedish tretton Thai สิบ​สาม Turkish on üç Ukrainian тринадцять Vietnamese mười ba
Calculation was done in 0.0140159130 seconds

## Miscellaneous

 Number 13 reversed 31 ASCII Code 13 Unicode Character U+000D Unix Timestamp Thu, 01 Jan 1970 00:00:13 +0000
Calculation was done in 0.0000369549 seconds
This page was generated in 0.02 seconds.