13
Number 13 (thirteen) is an odd two-digits prime number and natural number following 12 and preceding 14.
| 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 0.0000259876 seconds
| 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 0.0000061989 seconds
| 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 0.0000188351 seconds
| 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 0.0000071526 seconds
| Is 13 a Catalan number? | No |
| Is 13 a Fibonacci number? | Yes |
| Is 13 a Idoneal number? | Yes: I11 |
Calculation was done in 0.0000030994 seconds
| 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 0.0011000633 seconds
| Base | System | Value |
|---|
| 2 | Binary | 11012 |
| 3 | Ternary | 1113 |
| 4 | Quaternary | 314 |
| 5 | Quinary | 235 |
| 6 | Senary | 216 |
| 7 | Septenary | 167 |
| 8 | Octal | 158 |
| 9 | Nonary | 149 |
| 10 | Decimal | 13 |
| 12 | Duodecimal | 1112 |
| 16 | Hexadecimal | d16 |
| 20 | Vigesimal | d20 |
| 36 | Base36 | d36 |
| 60 | Sexagesimal | D60 |
Calculation was done in 0.0000169277 seconds
| Square of 13 (n2) | 169 |
| Cube of 13 (n3) | 2197 |
| Square root of 13 | 3.605551275464 |
| Natural Logarithm (ln) of 13 | 2.5649493574615 |
| Decimal Logarithm (log) of 13 | 1.1139433523068 |
Calculation was done in 0.0000050068 seconds
| Sine of 13 | 0.42016703682664 |
| Cosecant of 13 | 2.3800058366135 |
| Cosine of 13 | 0.9074467814502 |
| Secant of 13 | 1.1019929988642 |
| Tangent of 13 | 0.46302113293649 |
| Cotangent of 13 | 2.1597286362676 |
Calculation was done in 0.0000100136 seconds
Is 13 an Odd Number?
Yes, the number 13 is an odd number.
Total number of all odd numbers from 1 to 13 is
7Sum of all the odd numbers from 1 to 13 are
49The 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.Previous odd number is
11
Calculation was done in 0.0000061989 seconds
| 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 0.0000028610 seconds
| 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 0.0000641346 seconds
| 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 | สิบสาม |
| Turkish | on üç |
| Ukrainian | тринадцять |
| Vietnamese | mười ba |
Calculation was done in 0.0137670040 seconds
| 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 0.0000381470 seconds
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