| Nominal | 21450 |
| Cardinal | twenty-one thousand four hundred fifty |
Cardinal twenty-one thousand four hundred fifty | |
| Ordinal | 21,450th |
| Number of digits | 5 |
| Sum of digits | 12 |
| Product of digits | 0 |
| Number parity | Even |
| Prime factorization | 2 x 3 x 5 x 5 x 11 x 13 |
| Prime factorization in exponent form | 2 x 3 x 52 x 11 x 13 |
| Prime factors | 2, 3, 5, 11, 13 |
| Number of distinct prime factors ω(n) | 5 |
| Total number of prime factors Ω(n) | 6 |
| Sum of prime factors | 34 |
| Product of prime factors | 4290 |
| Is 21450 a prime number? | No |
| Is 21450 a semiprime number? | No |
| Is 21450 a Chen prime number? | No |
| Is 21450 a Mersenne prime number? | No |
| Is 21450 a Catalan number? | No |
| Is 21450 a Fibonacci number? | No |
| Is 21450 a Idoneal number? | No |
| Square of 21450 (n2) | 460102500 |
| Cube of 21450 (n3) | 9869198625000 |
| Square root of 21450 | 146.45818515877 |
| Natural Logarithm (ln) of 21450 | 9.9734799243562 |
| Decimal Logarithm (log) of 21450 | 4.3314272965207 |
| Sine of 21450 | -0.71361055324331 |
| Cosecant of 21450 | -1.4013245676582 |
| Cosine of 21450 | 0.70054263132216 |
| Secant of 21450 | 1.4274648754961 |
| Tangent of 21450 | -1.0186539995382 |
| Cotangent of 21450 | -0.98168759996366 |
| The spelling of 21450 in words is "twenty-one thousand four hundred fifty", meaning that: |
| 21450 is not an aban number (as it contains the letter a) |
| 21450 is not an eban number (as it contains the letter e) |
| 21450 is not an iban number (as it contains the letter i) |
| 21450 is not an oban number (as it contains the letter o) |
| 21450 is not a tban number (as it contains the letter t) |
| 21450 is not an uban number (as it contains the letter u) |
| Bengali numerals | ২১৪৫০ |
| Eastern Arabic numerals | ٢١٬٤٥٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓆼𓍥𓎊 |
| Khmer numerals | ២១៤៥០ |
| Japanese numerals | 二万千四百五十 |
| Roman numerals | n/a |
| Thai numerals | ๒๑๔๕๐ |
| Arabic | واحد و عشرون ألف و أربعة مائة و خمسون |
| Croatian | dvadeset i jedna tisuća četiristo pedeset |
| Czech | dvacet jedna tisíc čtyři sta padesát |
| Danish | en og tyve tusinde fire hundrede halvtreds |
| Dutch | éénentwintigduizend vierhonderdvijftig |
| Estonian | akpe blaeve vɔ ɖekɛ alafa ene kple blaatɔ̃ |
| Faroese | tjúgoeitt tusin og fýrehundraðogfimmti |
| Filipino | dalawáng pû’t isáng libó’t ápat na daán at limáng pû |
| Finnish | kaksikymmentäyksituhattaneljäsataaviisikymmentä |
| French | vingt et un mille quatre cent cinquante |
| Greek | είκοσι μία χίλιάδες τετρακόσια πενήντα |
| German | einundzwanzigtausendvierhundertfünfzig |
| Hebrew | עשרים ואחד אלף ארבע מאות חמישים |
| Hindi | इक्कीस हज़ार चार सौ पचास |
| Hungarian | huszonegyezernégyszázötven |
| Icelandic | tuttugu og eitt þúsund og fjögurhundrað og fimmtíu |
| Indonesian | dua puluh satu ribu empat ratus lima puluh |
| Italian | ventunomilaquattrocentocinquanta |
| Japanese | 二万千四百五十 |
| Korean | 이만 천사백오십 |
| Latvian | divdesmit viens tūkstoši četrsimt piecdesmit |
| Lithuanian | dvidešimt vienas tūkstantis keturi šimtai penkiasdešimt |
| Norwegian | tjueett tusen fire hundre og femti |
| Persian | بیست و یک هزار و چهارصد و پنجاه |
| Polish | dwadzieścia jeden tysięcy czterysta pięćdziesiąt |
| Portuguese | vinte e um mil quatrocentos e cinquenta |
| Romanian | douăzeci şi una mii patru sute cincizeci |
| Russian | двадцать одна тысяча четыреста пятьдесят |
| Serbian | двадесет и једна хиљада четиристо педесет |
| Slovak | dvadsaťjedna tisíc štyristo päťdesiat |
| Slovene | dvaset ena tisuću štiristo petdeset |
| Spanish | veintiún mil cuatrocientos cincuenta |
| Swahili | elfu ishirini na moja, mia nne na hamsini |
| Swedish | tjugoentusenfyrahundrafemtio |
| Thai | สองหมื่นหนึ่งพันสี่ร้อยห้าสิบ |
| Turkish | yirmi bir bin dört yüz elli |
| Ukrainian | двадцять одна тисяча чотириста пʼятдесят |
| Vietnamese | hai mươi mốt nghìn bốn trăm năm mươi |
| Number 21450 reversed | 05412 | |
| Unicode Character | U+53CA | 及 |
| Unix Timestamp | Thu, 01 Jan 1970 05:57:30 +0000 | |