| Nominal | 12643 |
| Cardinal | twelve thousand six hundred forty-three |
Cardinal twelve thousand six hundred forty-three | |
| Ordinal | 12,643rd |
| Number of digits | 5 |
| Sum of digits | 16 |
| Product of digits | 144 |
| Number parity | Odd |
| Prime factorization | 47 x 269 |
| Prime factors | 47, 269 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 316 |
| Product of prime factors | 12643 |
| Is 12643 a prime number? | No |
| Is 12643 a semiprime number? | Yes |
| Is 12643 a Chen prime number? | No |
| Is 12643 a Mersenne prime number? | No |
| Is 12643 a Catalan number? | No |
| Is 12643 a Fibonacci number? | No |
| Is 12643 a Idoneal number? | No |
| Square of 12643 (n2) | 159845449 |
| Cube of 12643 (n3) | 2020926011707 |
| Square root of 12643 | 112.44109569014 |
| Natural Logarithm (ln) of 12643 | 9.4448589813119 |
| Decimal Logarithm (log) of 12643 | 4.1018501379381 |
| Sine of 12643 | 0.94287653468769 |
| Cosecant of 12643 | 1.0605842474712 |
| Cosine of 12643 | 0.3331423724706 |
| Secant of 12643 | 3.0017196329124 |
| Tangent of 12643 | 2.8302510055844 |
| Cotangent of 12643 | 0.3533255524075 |
| The spelling of 12643 in words is "twelve thousand six hundred forty-three", meaning that: |
| 12643 is not an aban number (as it contains the letter a) |
| 12643 is not an eban number (as it contains the letter e) |
| 12643 is not an iban number (as it contains the letter i) |
| 12643 is not an oban number (as it contains the letter o) |
| 12643 is not a tban number (as it contains the letter t) |
| 12643 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১২৬৪৩ |
| Eastern Arabic numerals | ١٢٬٦٤٣ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓆼𓆼𓍧𓎉𓏼 |
| Khmer numerals | ១២៦៤៣ |
| Japanese numerals | 一万二千六百四十三 |
| Roman numerals | n/a |
| Thai numerals | ๑๒๖๔๓ |
| Arabic | إثنا عشر ألف و ستة مائة و ثلاثة و أربعون |
| Croatian | dvanaest tisuća šeststo četrdeset i tri |
| Czech | dvanáct tisíc šest set čtyřicet tři |
| Danish | tolv tusinde seks hundrede tre og fyrre |
| Dutch | twaalfduizend zeshonderddrieenveertig |
| Estonian | akpe wuieve alafa ade blaene vɔ etɔ̃ |
| Faroese | tólv tusin og sekshundraðogfýratitríggir |
| Filipino | labíng-dalawáng libó’t anim na daán at ápat na pû’t tatló |
| Finnish | kaksitoistatuhattakuusisataaneljäkymmentäkolme |
| French | douze mille six cent quarante-trois |
| Greek | δώδεκα χίλιάδες εξακόσια σαράντα τρία |
| German | zwölftausendsechshundertdreiundvierzig |
| Hebrew | שניים עשר אלף שש מאות ארבעים ושלוש |
| Hindi | बारह हज़ार छह सौ तैंतालीस |
| Hungarian | tizenkettőezerhatszáznegyvenhárom |
| Icelandic | tólf þúsund og sexhundrað og fjörutíu og þrír |
| Indonesian | dua belas ribu enam ratus empat puluh tiga |
| Italian | dodicimilaseicentoquarantatre |
| Japanese | 一万二千六百四十三 |
| Korean | 만 이천육백사십삼 |
| Latvian | divpadsmit tūkstoši sešsimt četrdesmit trīs |
| Lithuanian | dvylika tūkstančių šeši šimtai keturiasdešimt trys |
| Norwegian | tolv tusen seks hundre og førtitre |
| Persian | دوازده هزار و ششصد و چهل و سه |
| Polish | dwanaście tysięcy sześćset czterdzieści trzy |
| Portuguese | doze mil seiscentos e quarenta e três |
| Romanian | douăsprezece mii şase sute patruzeci şi trei |
| Russian | двенадцать тысяч шестьсот сорок три |
| Serbian | дванаест хиљада шестсто четрдесет и три |
| Slovak | dvanásť tisíc šesťsto štyridsaťtri |
| Slovene | dvanajst tisuću šesto štirideset tri |
| Spanish | doce mil seiscientos cuarenta y tres |
| Swahili | elfu kumi na mbili, mia sita na arobaini na tatu |
| Swedish | tolvtusensexhundrafyrtiotre |
| Thai | หนึ่งหมื่นสองพันหกร้อยสี่สิบสาม |
| Turkish | on iki bin altı yüz kırk üç |
| Ukrainian | дванадцять тисяч шістсот сорок три |
| Vietnamese | mười hai nghìn sáu trăm bốn mươi ba |
| Number 12643 reversed | 34621 | |
| Unicode Character | U+3163 | ㅣ |
| Unix Timestamp | Thu, 01 Jan 1970 03:30:43 +0000 | |