| Nominal | 108991 |
| Cardinal | one hundred eight thousand nine hundred ninety-one |
Cardinal one hundred eight thousand nine hundred ninety-one | |
| Ordinal | 108,991st |
| Number of digits | 6 |
| Sum of digits | 28 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 108991 |
| Prime factors | 108991 |
| Number of distinct prime factors ω(n) | 1 |
| Total number of prime factors Ω(n) | 1 |
| Sum of prime factors | 108991 |
| Product of prime factors | 108991 |
| Is 108991 a prime number? | Yes |
| Is 108991 a semiprime number? | No |
| Is 108991 a Chen prime number? | No |
| Is 108991 a Mersenne prime number? | No |
| Is 108991 a Catalan number? | No |
| Is 108991 a Fibonacci number? | No |
| Is 108991 a Idoneal number? | No |
| Square of 108991 (n2) | 11879038081 |
| Cube of 108991 (n3) | 1294708239486271 |
| Square root of 108991 | 330.13784999603 |
| Natural Logarithm (ln) of 108991 | 11.599020588995 |
| Decimal Logarithm (log) of 108991 | 5.0373906372827 |
| Sine of 108991 | 0.27051794050288 |
| Cosecant of 108991 | 3.6966124987535 |
| Cosine of 108991 | -0.96271493385429 |
| Secant of 108991 | -1.0387290825504 |
| Tangent of 108991 | -0.28099485215197 |
| Cotangent of 108991 | -3.5587840572224 |
| The spelling of 108991 in words is "one hundred eight thousand nine hundred ninety-one", meaning that: |
| 108991 is not an aban number (as it contains the letter a) |
| 108991 is not an eban number (as it contains the letter e) |
| 108991 is not an iban number (as it contains the letter i) |
| 108991 is not an oban number (as it contains the letter o) |
| 108991 is not a tban number (as it contains the letter t) |
| 108991 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১০৮৯৯১ |
| Eastern Arabic numerals | ١٠٨٬٩٩١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍪𓎎𓏺 |
| Khmer numerals | ១០៨៩៩១ |
| Japanese numerals | 十万八千九百九十一 |
| Roman numerals | n/a |
| Thai numerals | ๑๐๘๙๙๑ |
| Arabic | مائة و ثمانية ألف و تسعة مائة و واحد و تسعون |
| Croatian | sto osam tisuća devetsto devedeset i jedan |
| Czech | sto osm tisíc devět set devadesát jeden |
| Danish | et hundrede otte tusinde ni hundrede en og halvfems |
| Dutch | honderd en achtduizend negenhonderdéénennegentig |
| Estonian | akpe alafa ɖeka kple enyi alafa asieke blaasieke vɔ ɖekɛ |
| Faroese | eitthundraðogátta tusin og níggjuhundraðognítiein |
| Filipino | isáng daán at walóng libó’t siyám na daán at siyám na pû’t isá |
| Finnish | satakahdeksantuhattayhdeksänsataayhdeksänkymmentäyksi |
| French | cent huit mille neuf cent quatre-vingt-onze |
| Greek | εκατόν οκτώ χίλιάδες εννιακόσια εννενήντα ένα |
| German | einhundertachttausendneunhunderteinundneunzig |
| Hebrew | מאה ושמונה אלף תשע מאות תשעים ואחת |
| Hindi | एक लाख आठ हज़ार नौ सौ इक्यानबे |
| Hungarian | száznyolcezerkilencszázkilencvenegy |
| Icelandic | eitthundrað og átta þúsund og níuhundrað og níutíu og einn |
| Indonesian | seratus delapan ribu sembilan ratus sembilan puluh satu |
| Italian | centoottomilanovecentonovantuno |
| Japanese | 十万八千九百九十一 |
| Korean | 십만 팔천구백구십일 |
| Latvian | simt astoņi tūkstoši deviņsimt deviņdesmit viens |
| Lithuanian | šimtas aštuoni tūkstančiai devyni šimtai devyniasdešimt vienas |
| Norwegian | hundre og åtte tusen ni hundre og nittién |
| Persian | صد و هشت هزار و نهصد و نود و یک |
| Polish | sto osiem tysięcy dziewięćset dziewięćdziesiąt jeden |
| Portuguese | cento e oito mil novecentos e noventa e um |
| Romanian | una sută opt mii nouă sute nouăzeci şi unu |
| Russian | сто восемь тысяч девятьсот девяносто один |
| Serbian | сто осам хиљада деветсто деведесет и један |
| Slovak | jednasto osem tisíc deväťsto deväťdesiatjeden |
| Slovene | sto osem tisuću devetsto devetdeset ena |
| Spanish | ciento ocho mil novecientos noventa y uno |
| Swahili | elfu mia moja na nane, mia tisa na tisini na moja |
| Swedish | enhundraåttatusenniohundranittioen |
| Thai | หนึ่งแสนแปดพันเก้าร้อยเก้าสิบเอ็ด |
| Turkish | yüz sekiz bin dokuz yüz doksan bir |
| Ukrainian | сто вісім тисяч девʼятсот девʼяносто один |
| Vietnamese | một trăm lẻ tám nghìn chín trăm chín mươi mốt |
| Number 108991 reversed | 199801 | |
| Unicode Character | U+1A9BF | |
| Hexadecimal color | #108991 | |
| Unix Timestamp | Fri, 02 Jan 1970 06:16:31 +0000 | |