| Nominal | 991080 |
| Cardinal | nine hundred ninety-one thousand eighty |
Cardinal nine hundred ninety-one thousand eighty | |
| Ordinal | 991,080th |
| Number of digits | 6 |
| Sum of digits | 27 |
| Product of digits | 0 |
| Number parity | Even |
| Prime factorization | 2 x 2 x 2 x 3 x 3 x 5 x 2753 |
| Prime factorization in exponent form | 23 x 32 x 5 x 2753 |
| Prime factors | 2, 3, 5, 2753 |
| Number of distinct prime factors ω(n) | 4 |
| Total number of prime factors Ω(n) | 7 |
| Sum of prime factors | 2763 |
| Product of prime factors | 82590 |
| Is 991080 a prime number? | No |
| Is 991080 a semiprime number? | No |
| Is 991080 a Chen prime number? | No |
| Is 991080 a Mersenne prime number? | No |
| Is 991080 a Catalan number? | No |
| Is 991080 a Fibonacci number? | No |
| Is 991080 a Idoneal number? | No |
| Base | System | Value |
|---|---|---|
| 2 | Binary | 111100011111011010002 |
| 3 | Ternary | 12121001112003 |
| 4 | Quaternary | 33013312204 |
| 5 | Quinary | 2232033105 |
| 6 | Senary | 331242006 |
| 7 | Septenary | 112653067 |
| 8 | Octal | 36175508 |
| 9 | Nonary | 17704509 |
| 10 | Decimal | 991080 |
| 12 | Duodecimal | 3b966012 |
| 16 | Hexadecimal | f1f6816 |
| 20 | Vigesimal | 63he020 |
| 36 | Base36 | l8q036 |
| 60 | Sexagesimal | 4ZI060 |
| Square of 991080 (n2) | 982239566400 |
| Cube of 991080 (n3) | 973477989467712000 |
| Square root of 991080 | 995.53000959288 |
| Natural Logarithm (ln) of 991080 | 13.806550536593 |
| Decimal Logarithm (log) of 991080 | 5.9961087121606 |
| Sine of 991080 | 0.98109110648538 |
| Cosecant of 991080 | 1.0192733308758 |
| Cosine of 991080 | -0.1935464822085 |
| Secant of 991080 | -5.1667175171013 |
| Tangent of 991080 | -5.0690206057504 |
| Cotangent of 991080 | -0.19727676759996 |
| The spelling of 991080 in words is "nine hundred ninety-one thousand eighty", meaning that: |
| 991080 is not an aban number (as it contains the letter a) |
| 991080 is not an eban number (as it contains the letter e) |
| 991080 is not an iban number (as it contains the letter i) |
| 991080 is not an oban number (as it contains the letter o) |
| 991080 is not a tban number (as it contains the letter t) |
| 991080 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৯৯১০৮০ |
| Eastern Arabic numerals | ٩٩١٬٠٨٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓆼𓎍 |
| Khmer numerals | ៩៩១០៨០ |
| Japanese numerals | 九十九万千八十 |
| Roman numerals | n/a |
| Thai numerals | ๙๙๑๐๘๐ |
| Arabic | تسعة مائة و واحد و تسعون ألف و ثمانون |
| Croatian | devetsto devedeset i jedna tisuća osamdeset |
| Czech | devět set devadesát jedna tisíc osmdesát |
| Danish | ni hundrede en og halvfems tusinde og firs |
| Dutch | negenhonderdéénennegentigduizend tachtig |
| Estonian | akpe alafa asieke blaasieke vɔ ɖekɛ kpakple blaenyi |
| Faroese | níggjuhundraðognítieitt tusin og áttati |
| Filipino | siyám na daán at siyám na pû’t isáng libó’t walóng pû |
| Finnish | yhdeksänsataayhdeksänkymmentäyksituhattakahdeksankymmentä |
| French | neuf cent quatre-vingt-onze mille quatre-vingts |
| Greek | εννιακόσιες εννενήντα μία χίλιάδες ογδόντα |
| German | neunhunderteinundneunzigtausendachtzig |
| Hebrew | תשע מאות תשעים ואחד אלף שמונים |
| Hindi | नौ लाख इक्यानबे हज़ार अस्सी |
| Hungarian | kilencszázkilencvenegyezernyolcvan |
| Icelandic | níuhundrað og níutíu og eitt þúsund og áttatíu |
| Indonesian | sembilan ratus sembilan puluh satu ribu delapan puluh |
| Italian | novecentonovant e unmilaottanta |
| Japanese | 九十九万千八十 |
| Korean | 구십구만 천팔십 |
| Latvian | deviņsimt deviņdesmit viens tūkstoši astoņdesmit |
| Lithuanian | devyni šimtai devyniasdešimt vienas tūkstantis aštuoniasdešimt |
| Norwegian | ni hundre og nittiett tusen og åtti |
| Persian | نهصد و نود و یک هزار و هشتاد |
| Polish | dziewięćset dziewięćdziesiąt jeden tysięcy osiemdziesiąt |
| Portuguese | novecentos e noventa e um mil e oitenta |
| Romanian | nouă sute nouăzeci şi una mii optzeci |
| Russian | девятьсот девяносто одна тысяча восемьдесят |
| Serbian | деветсто деведесет и једна хиљада осамдесет |
| Slovak | deväťsto deväťdesiatjedna tisíc osemdesiat |
| Slovene | devetsto devetdeset ena tisuću osemdeset |
| Spanish | novecientos noventa y un mil ochenta |
| Swahili | elfu mia tisa na tisini na moja, themanini |
| Swedish | niohundranittioentusenåttio |
| Thai | เก้าแสนเก้าหมื่นหนึ่งพันแปดสิบ |
| Turkish | dokuz yüz doksan bir bin seksen |
| Ukrainian | девʼятсот девʼяносто одна тисяча вісімдесят |
| Vietnamese | chín trăm chín mươi mốt nghìn không trăm tám mươi |
| Number 991080 reversed | 080199 | |
| Unicode Character | U+F1F68 | |
| Hexadecimal color | #991080 | |
| Unix Timestamp | Mon, 12 Jan 1970 11:18:00 +0000 | |