| Nominal | 128720 |
| Cardinal | one hundred twenty-eight thousand seven hundred twenty |
Cardinal one hundred twenty-eight thousand seven hundred twenty | |
| Ordinal | 128,720th |
| Number of digits | 6 |
| Sum of digits | 20 |
| Product of digits | 0 |
| Number parity | Even |
| Prime factorization | 2 x 2 x 2 x 2 x 5 x 1609 |
| Prime factorization in exponent form | 24 x 5 x 1609 |
| Prime factors | 2, 5, 1609 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 6 |
| Sum of prime factors | 1616 |
| Product of prime factors | 16090 |
| Is 128720 a prime number? | No |
| Is 128720 a semiprime number? | No |
| Is 128720 a Chen prime number? | No |
| Is 128720 a Mersenne prime number? | No |
| Is 128720 a Catalan number? | No |
| Is 128720 a Fibonacci number? | No |
| Is 128720 a Idoneal number? | No |
| Square of 128720 (n2) | 16568838400 |
| Cube of 128720 (n3) | 2132740878848000 |
| Square root of 128720 | 358.77569594386 |
| Natural Logarithm (ln) of 128720 | 11.765394781666 |
| Decimal Logarithm (log) of 128720 | 5.109646031091 |
| Sine of 128720 | 0.45804576551336 |
| Cosecant of 128720 | 2.1831879591316 |
| Cosine of 128720 | -0.88892861169797 |
| Secant of 128720 | -1.1249497280663 |
| Tangent of 128720 | -0.51527845935618 |
| Cotangent of 128720 | -1.9406982415866 |
| The spelling of 128720 in words is "one hundred twenty-eight thousand seven hundred twenty", meaning that: |
| 128720 is not an aban number (as it contains the letter a) |
| 128720 is not an eban number (as it contains the letter e) |
| 128720 is not an iban number (as it contains the letter i) |
| 128720 is not an oban number (as it contains the letter o) |
| 128720 is not a tban number (as it contains the letter t) |
| 128720 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১২৮৭২০ |
| Eastern Arabic numerals | ١٢٨٬٧٢٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆐𓂭𓂭𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍨𓎇 |
| Khmer numerals | ១២៨៧២០ |
| Japanese numerals | 十二万八千七百二十 |
| Roman numerals | n/a |
| Thai numerals | ๑๒๘๗๒๐ |
| Arabic | مائة و ثمانية و عشرون ألف و سبعة مائة و عشرون |
| Croatian | sto dvadeset i osam tisuća sedamsto dvadeset |
| Czech | sto dvacet osm tisíc sedm set dvacet |
| Danish | et hundrede otte og tyve tusinde syv hundrede tyve |
| Dutch | honderdachtentwintigduizend zevenhonderdtwintig |
| Estonian | akpe alafa ɖeka blaeve vɔ enyi alafa adre kple blaeve |
| Faroese | eitthundraðogtjúgoátta tusin og sjeyhundraðogtjúgo |
| Filipino | isáng daán at dalawáng pû’t walóng libó’t pitóng daán at dalawáng pû |
| Finnish | satakaksikymmentäkahdeksantuhattaseitsemänsataakaksikymmentä |
| French | cent vingt-huit mille sept cent vingt |
| Greek | εκατόν είκοσι οκτώ χίλιάδες επτακόσια είκοσι |
| German | einhundertachtundzwanzigtausendsiebenhundertzwanzig |
| Hebrew | מאה עשרים ושמונה אלף שבע מאות עשרים |
| Hindi | एक लाख अट्ठाईस हज़ार सात सौ बीस |
| Hungarian | százhuszonnyolcezerhétszázhúsz |
| Icelandic | eitthundrað og tuttugu og átta þúsund og sjóhundrað og tuttugu |
| Indonesian | seratus dua puluh delapan ribu tujuh ratus dua puluh |
| Italian | centoventottomilasettecentoventi |
| Japanese | 十二万八千七百二十 |
| Korean | 십이만 팔천칠백이십 |
| Latvian | simt divdesmit astoņi tūkstoši septiņsimt divdesmit |
| Lithuanian | šimtas dvidešimt aštuoni tūkstančiai septyni šimtai dvidešimt |
| Norwegian | hundre og tjueåtte tusen sju hundre og tjue |
| Persian | صد و بیست و هشت هزار و هفتصد و بیست |
| Polish | sto dwadzieścia osiem tysięcy siedemset dwadzieścia |
| Portuguese | cento e vinte e oito mil setecentos e vinte |
| Romanian | una sută douăzeci şi opt mii şapte sute douăzeci |
| Russian | сто двадцать восемь тысяч семьсот двадцать |
| Serbian | сто двадесет и осам хиљада седамсто двадесет |
| Slovak | jednasto dvadsaťosem tisíc sedemsto dvadsať |
| Slovene | sto dvaset osem tisuću sedemsto dvaset |
| Spanish | ciento veintiocho mil setecientos veinte |
| Swahili | elfu mia moja na ishirini na nane, mia saba na ishirini |
| Swedish | enhundratjugoåttatusensjuhundratjugo |
| Thai | หนึ่งแสนสองหมื่นแปดพันเจ็ดร้อยยี่สิบ |
| Turkish | yüz yirmi sekiz bin yedi yüz yirmi |
| Ukrainian | сто двадцять вісім тисяч сімсот двадцять |
| Vietnamese | một trăm hai mươi tám nghìn bảy trăm hai mươi |
| Number 128720 reversed | 027821 | |
| Unicode Character | U+1F6D0 | 🛐 |
| Hexadecimal color | #128720 | |
| Unix Timestamp | Fri, 02 Jan 1970 11:45:20 +0000 | |