11
Number 11 (eleven) is an odd two-digits prime number and natural number following 10 and preceding 12.
| Nominal | 11 |
| Cardinal | eleven |
| Ordinal | 11th |
| Number of digits | 2 |
| Sum of digits | 2 |
| Product of digits | 1 |
| Number parity | Odd |
Calculation was done in 0.0000381470 seconds
| Prime factorization | 11 |
| Prime factors | 11 |
| Number of distinct prime factors ω(n) | 1 |
| Total number of prime factors Ω(n) | 1 |
| Sum of prime factors | 11 |
| Product of prime factors | 11 |
Calculation was done in 0.0000078678 seconds
| List of proper divisors | 1 |
| List of all dividers | 1, 11 |
| Number of divisors d(n) | 2 |
| Sum of all divisors σ(n) | 12 |
| Aliquot sum | 1 |
| 11 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 10. |
Calculation was done in 0.0000250340 seconds
| Is 11 a prime number? | Yes |
| Is 11 a semiprime number? | No |
| Is 11 a Chen prime number? | Yes |
| Is 11 a Mersenne prime number? | No |
Calculation was done in 0.0000119209 seconds
| Is 11 a Catalan number? | No |
| Is 11 a Fibonacci number? | No |
| Is 11 a Idoneal number? | No |
Calculation was done in 0.0000050068 seconds
| 11 is not a Happy number |
| 11 is not a Humble number |
| 11 is not a Münchhausen number |
| 11 is not a Perfect number |
| 11 is not a Perfect square |
| 11 is a Palindrome |
Calculation was done in 0.0048429966 seconds
| Base | System | Value |
|---|
| 2 | Binary | 10112 |
| 3 | Ternary | 1023 |
| 4 | Quaternary | 234 |
| 5 | Quinary | 215 |
| 6 | Senary | 156 |
| 7 | Septenary | 147 |
| 8 | Octal | 138 |
| 9 | Nonary | 129 |
| 10 | Decimal | 11 |
| 12 | Duodecimal | b12 |
| 16 | Hexadecimal | b16 |
| 20 | Vigesimal | b20 |
| 36 | Base36 | b36 |
| 60 | Sexagesimal | B60 |
Calculation was done in 0.0000159740 seconds
| Square of 11 (n2) | 121 |
| Cube of 11 (n3) | 1331 |
| Square root of 11 | 3.3166247903554 |
| Natural Logarithm (ln) of 11 | 2.3978952727984 |
| Decimal Logarithm (log) of 11 | 1.0413926851582 |
Calculation was done in 0.0000040531 seconds
| Sine of 11 | -0.9999902065507 |
| Cosecant of 11 | -1.0000097935452 |
| Cosine of 11 | 0.0044256979880508 |
| Secant of 11 | 225.95305931402 |
| Tangent of 11 | -225.9508464542 |
| Cotangent of 11 | -0.0044257413313241 |
Calculation was done in 0.0000109673 seconds
Is 11 an Odd Number?
Yes, the number 11 is an odd number.
Total number of all odd numbers from 1 to 11 is
6Sum of all the odd numbers from 1 to 11 are
36The sum of all odd numbers is a perfect square: 36 = 6
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
| The spelling of 11 in words is "eleven", meaning that: |
| 11 is an aban number (a number without the letter a) |
| 11 is not an eban number (as it contains the letter e) |
| 11 is an iban number (a number without the letter i) |
| 11 is an oban number (a number without the letter o) |
| 11 is a tban number (a number without the letter t) |
| 11 is an uban number (a number without the letter u) |
Calculation was done in 0.0000030994 seconds
| Bengali numerals | ১১ |
| Eastern Arabic numerals | ١١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓎆𓏺 |
| Khmer numerals | ១១ |
| Japanese numerals | 十一 |
| Roman numerals | XI |
| Thai numerals | ๑๑ |
Calculation was done in 0.0000720024 seconds
| Arabic | إحدى عشر |
| Croatian | jedanaest |
| Czech | jedenáct |
| Danish | elleve |
| Dutch | elf |
| Estonian | wuiɖekɛ |
| Faroese | ellivu |
| Filipino | labíng-isá |
| Finnish | yksitoista |
| French | onze |
| Greek | έντεκα |
| German | elf |
| Hebrew | אחת עשרה |
| Hindi | ग्यारह |
| Hungarian | tizenegy |
| Icelandic | ellefu |
| Indonesian | sebelas |
| Italian | undici |
| Japanese | 十一 |
| Korean | 십일 |
| Latvian | vienpadsmit |
| Lithuanian | vienuolika |
| Norwegian | elleve |
| Persian | یازده |
| Polish | jedenaście |
| Portuguese | onze |
| Romanian | unsprezece |
| Russian | одиннадцать |
| Serbian | једанаест |
| Slovak | jedenásť |
| Slovene | enajst |
| Spanish | once |
| Swahili | kumi na moja |
| Swedish | elva |
| Thai | สิบเอ็ด |
| Turkish | on bir |
| Ukrainian | одинадцять |
| Vietnamese | mười một |
Calculation was done in 0.0143229961 seconds
| Number 11 reversed | 11 |
| ASCII Code | 11 | |
| Unicode Character | U+000B | |
| Unix Timestamp | Thu, 01 Jan 1970 00:00:11 +0000 |
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