20
Number 20 (twenty) is an even two-digits composite number and natural number following 19 and preceding 21.
| Nominal | 20 |
| Cardinal | twenty |
| Ordinal | 20th |
| Number of digits | 2 |
| Sum of digits | 2 |
| Product of digits | 0 |
| Number parity | Even |
Calculation was done in 0.0000410080 seconds
| Prime factorization | 2 x 2 x 5 |
| Prime factorization in exponent form | 22 x 5 |
| Prime factors | 2, 5 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 7 |
| Product of prime factors | 10 |
Calculation was done in 0.0000100136 seconds
| List of proper divisors | 1, 2, 4, 5, 10 |
| List of all dividers | 1, 2, 4, 5, 10, 20 |
| Number of divisors d(n) | 6 |
| Sum of all divisors σ(n) | 42 |
| Aliquot sum | 22 |
| 20 is an abundant number , because the sum of its proper divisors (22) is greater than itself. Its abundance is 2. |
Calculation was done in 0.0000259876 seconds
| Is 20 a prime number? | No |
| Is 20 a semiprime number? | No |
| Is 20 a Chen prime number? | No |
| Is 20 a Mersenne prime number? | No |
Calculation was done in 0.0000119209 seconds
| Is 20 a Catalan number? | No |
| Is 20 a Fibonacci number? | No |
| Is 20 a Idoneal number? | No |
Calculation was done in 0.0000050068 seconds
| 20 is not a Happy number |
| 20 is a Humble number |
| 20 is not a Münchhausen number |
| 20 is not a Perfect number |
| 20 is not a Perfect square |
| 20 is not a Palindrome |
Calculation was done in 0.0043849945 seconds
| Base | System | Value |
|---|
| 2 | Binary | 101002 |
| 3 | Ternary | 2023 |
| 4 | Quaternary | 1104 |
| 5 | Quinary | 405 |
| 6 | Senary | 326 |
| 7 | Septenary | 267 |
| 8 | Octal | 248 |
| 9 | Nonary | 229 |
| 10 | Decimal | 20 |
| 12 | Duodecimal | 1812 |
| 16 | Hexadecimal | 1416 |
| 20 | Vigesimal | 1020 |
| 36 | Base36 | k36 |
| 60 | Sexagesimal | K60 |
Calculation was done in 0.0000169277 seconds
| Square of 20 (n2) | 400 |
| Cube of 20 (n3) | 8000 |
| Square root of 20 | 4.4721359549996 |
| Natural Logarithm (ln) of 20 | 2.995732273554 |
| Decimal Logarithm (log) of 20 | 1.301029995664 |
Calculation was done in 0.0000050068 seconds
| Sine of 20 | 0.91294525072763 |
| Cosecant of 20 | 1.095355936408 |
| Cosine of 20 | 0.40808206181339 |
| Secant of 20 | 2.4504875209567 |
| Tangent of 20 | 2.2371609442247 |
| Cotangent of 20 | 0.44699510894892 |
Calculation was done in 0.0000100136 seconds
Is 20 an Even Number?
Yes, the number 20 is an even number.
Previous even number is
18
Calculation was done in 0.0000040531 seconds
| The spelling of 20 in words is "twenty", meaning that: |
| 20 is an aban number (a number without the letter a) |
| 20 is not an eban number (as it contains the letter e) |
| 20 is an iban number (a number without the letter i) |
| 20 is an oban number (a number without the letter o) |
| 20 is not a tban number (as it contains the letter t) |
| 20 is an uban number (a number without the letter u) |
Calculation was done in 0.0000028610 seconds
| Bengali numerals | ২০ |
| Eastern Arabic numerals | ٢٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓎇 |
| Khmer numerals | ២០ |
| Japanese numerals | 二十 |
| Roman numerals | XX |
| Thai numerals | ๒๐ |
Calculation was done in 0.0000700951 seconds
| Arabic | عشرون |
| Croatian | dvadeset |
| Czech | dvacet |
| Danish | tyve |
| Dutch | twintig |
| Estonian | blaeve |
| Faroese | tjúgo |
| Filipino | dalawáng pû |
| Finnish | kaksikymmentä |
| French | vingt |
| Greek | είκοσι |
| German | zwanzig |
| Hebrew | עשרים |
| Hindi | बीस |
| Hungarian | húsz |
| Icelandic | tuttugu |
| Indonesian | dua puluh |
| Italian | venti |
| Japanese | 二十 |
| Korean | 이십 |
| Latvian | divdesmit |
| Lithuanian | dvidešimt |
| Norwegian | tjue |
| Persian | بیست |
| Polish | dwadzieścia |
| Portuguese | vinte |
| Romanian | douăzeci |
| Russian | двадцать |
| Serbian | двадесет |
| Slovak | dvadsať |
| Slovene | dvaset |
| Spanish | veinte |
| Swahili | ishirini |
| Swedish | tjugo |
| Thai | ยี่สิบ |
| Turkish | yirmi |
| Ukrainian | двадцять |
| Vietnamese | hai mươi |
Calculation was done in 0.0139961243 seconds
| Number 20 reversed | 02 |
| ASCII Code | 20 | |
| Unicode Character | U+0014 | |
| Unix Timestamp | Thu, 01 Jan 1970 00:00:20 +0000 |
Calculation was done in 0.0000240803 seconds
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