| Nominal | 21228 |
| Cardinal | twenty-one thousand two hundred twenty-eight |
Cardinal twenty-one thousand two hundred twenty-eight | |
| Ordinal | 21,228th |
| Number of digits | 5 |
| Sum of digits | 15 |
| Product of digits | 64 |
| Number parity | Even |
| Prime factorization | 2 x 2 x 3 x 29 x 61 |
| Prime factorization in exponent form | 22 x 3 x 29 x 61 |
| Prime factors | 2, 3, 29, 61 |
| Number of distinct prime factors ω(n) | 4 |
| Total number of prime factors Ω(n) | 5 |
| Sum of prime factors | 95 |
| Product of prime factors | 10614 |
| Is 21228 a prime number? | No |
| Is 21228 a semiprime number? | No |
| Is 21228 a Chen prime number? | No |
| Is 21228 a Mersenne prime number? | No |
| Is 21228 a Catalan number? | No |
| Is 21228 a Fibonacci number? | No |
| Is 21228 a Idoneal number? | No |
| Square of 21228 (n2) | 450627984 |
| Cube of 21228 (n3) | 9565930844352 |
| Square root of 21228 | 145.69831845289 |
| Natural Logarithm (ln) of 21228 | 9.9630763439478 |
| Decimal Logarithm (log) of 21228 | 4.3269090789573 |
| Sine of 21228 | -0.2555723752593 |
| Cosecant of 21228 | -3.9127859534326 |
| Cosine of 21228 | -0.96678992599443 |
| Secant of 21228 | -1.034350868904 |
| Tangent of 21228 | 0.26435150841732 |
| Cotangent of 21228 | 3.7828420423512 |
| The spelling of 21228 in words is "twenty-one thousand two hundred twenty-eight", meaning that: |
| 21228 is not an aban number (as it contains the letter a) |
| 21228 is not an eban number (as it contains the letter e) |
| 21228 is not an iban number (as it contains the letter i) |
| 21228 is not an oban number (as it contains the letter o) |
| 21228 is not a tban number (as it contains the letter t) |
| 21228 is not an uban number (as it contains the letter u) |
| Bengali numerals | ২১২২৮ |
| Eastern Arabic numerals | ٢١٬٢٢٨ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓆼𓍣𓎇𓐁 |
| Khmer numerals | ២១២២៨ |
| Japanese numerals | 二万千二百二十八 |
| Roman numerals | n/a |
| Thai numerals | ๒๑๒๒๘ |
| Arabic | واحد و عشرون ألف و مائتان و ثمانية و عشرون |
| Croatian | dvadeset i jedna tisuća dvjesto dvadeset i osam |
| Czech | dvacet jedna tisíc dvě stě dvacet osm |
| Danish | en og tyve tusinde to hundrede otte og tyve |
| Dutch | éénentwintigduizend tweehonderdachtentwintig |
| Estonian | akpe blaeve vɔ ɖekɛ alafa eve blaeve vɔ enyi |
| Faroese | tjúgoeitt tusin og tveyhundraðogtjúgoátta |
| Filipino | dalawáng pû’t isáng libó’t dalawáng daán at dalawáng pû’t waló |
| Finnish | kaksikymmentäyksituhattakaksisataakaksikymmentäkahdeksan |
| French | vingt et un mille deux cent vingt-huit |
| Greek | είκοσι μία χίλιάδες διακόσια είκοσι οκτώ |
| German | einundzwanzigtausendzweihundertachtundzwanzig |
| Hebrew | עשרים ואחד אלף מאתיים עשרים ושמונה |
| Hindi | इक्कीस हज़ार दो सौ अट्ठाईस |
| Hungarian | huszonegyezerkétszázhuszonnyolc |
| Icelandic | tuttugu og eitt þúsund og tvöhundrað og tuttugu og átta |
| Indonesian | dua puluh satu ribu dua ratus dua puluh delapan |
| Italian | ventunomiladuecentoventotto |
| Japanese | 二万千二百二十八 |
| Korean | 이만 천이백이십팔 |
| Latvian | divdesmit viens tūkstoši divsimt divdesmit astoņi |
| Lithuanian | dvidešimt vienas tūkstantis du šimtai dvidešimt aštuoni |
| Norwegian | tjueett tusen to hundre og tjueåtte |
| Persian | بیست و یک هزار و دویست و بیست و هشت |
| Polish | dwadzieścia jeden tysięcy dwieście dwadzieścia osiem |
| Portuguese | vinte e um mil duzentos e vinte e oito |
| Romanian | douăzeci şi una mii două sute douăzeci şi opt |
| Russian | двадцать одна тысяча двести двадцать восемь |
| Serbian | двадесет и једна хиљада двеста двадесет и осам |
| Slovak | dvadsaťjedna tisíc dvesto dvadsaťosem |
| Slovene | dvaset ena tisuću dvjesto dvaset osem |
| Spanish | veintiún mil doscientos veintiocho |
| Swahili | elfu ishirini na moja, mia mbili na ishirini na nane |
| Swedish | tjugoentusentvåhundratjugoåtta |
| Thai | สองหมื่นหนึ่งพันสองร้อยยี่สิบแปด |
| Turkish | yirmi bir bin iki yüz yirmi sekiz |
| Ukrainian | двадцять одна тисяча двісті двадцять вісім |
| Vietnamese | hai mươi mốt nghìn hai trăm hai mươi tám |
| Number 21228 reversed | 82212 | |
| Unicode Character | U+52EC | 勬 |
| Unix Timestamp | Thu, 01 Jan 1970 05:53:48 +0000 | |