| Nominal | 990991 |
| Cardinal | nine hundred ninety thousand nine hundred ninety-one |
Cardinal nine hundred ninety thousand nine hundred ninety-one | |
| Ordinal | 990,991st |
| Number of digits | 6 |
| Sum of digits | 37 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 443 x 2237 |
| Prime factors | 443, 2237 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 2680 |
| Product of prime factors | 990991 |
| Is 990991 a prime number? | No |
| Is 990991 a semiprime number? | No |
| Is 990991 a Chen prime number? | No |
| Is 990991 a Mersenne prime number? | No |
| Is 990991 a Catalan number? | No |
| Is 990991 a Fibonacci number? | No |
| Is 990991 a Idoneal number? | No |
| Base | System | Value |
|---|---|---|
| 2 | Binary | 111100011111000011112 |
| 3 | Ternary | 12121001011013 |
| 4 | Quaternary | 33013300334 |
| 5 | Quinary | 2232024315 |
| 6 | Senary | 331235316 |
| 7 | Septenary | 112651217 |
| 8 | Octal | 36174178 |
| 9 | Nonary | 17703419 |
| 10 | Decimal | 990991 |
| 12 | Duodecimal | 3b95a712 |
| 16 | Hexadecimal | f1f0f16 |
| 20 | Vigesimal | 63h9b20 |
| 36 | Base36 | l8nj36 |
| 60 | Sexagesimal | 4ZGV60 |
| Square of 990991 (n2) | 982063162081 |
| Cube of 990991 (n3) | 973215755053812271 |
| Square root of 990991 | 995.4853087816 |
| Natural Logarithm (ln) of 990991 | 13.806460731535 |
| Decimal Logarithm (log) of 990991 | 5.9960697103197 |
| Sine of 990991 | 0.66699356947542 |
| Cosecant of 990991 | 1.4992648291744 |
| Cosine of 990991 | 0.74506347265078 |
| Secant of 990991 | 1.3421675289519 |
| Tangent of 990991 | 0.89521711096962 |
| Cotangent of 990991 | 1.1170474600479 |
| The spelling of 990991 in words is "nine hundred ninety thousand nine hundred ninety-one", meaning that: |
| 990991 is not an aban number (as it contains the letter a) |
| 990991 is not an eban number (as it contains the letter e) |
| 990991 is not an iban number (as it contains the letter i) |
| 990991 is not an oban number (as it contains the letter o) |
| 990991 is not a tban number (as it contains the letter t) |
| 990991 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৯৯০৯৯১ |
| Eastern Arabic numerals | ٩٩٠٬٩٩١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓍪𓎎𓏺 |
| Khmer numerals | ៩៩០៩៩១ |
| Japanese numerals | 九十九万九百九十一 |
| Roman numerals | n/a |
| Thai numerals | ๙๙๐๙๙๑ |
| Arabic | تسعة مائة و تسعون ألف و تسعة مائة و واحد و تسعون |
| Croatian | devetsto devedeset tisuća devetsto devedeset i jedan |
| Czech | devět set devadesát tisíc devět set devadesát jeden |
| Danish | ni hundrede halvfems tusinde ni hundrede en og halvfems |
| Dutch | negenhonderdnegentigduizend negenhonderdéénennegentig |
| Estonian | akpe alafa asieke kple blaasieke alafa asieke blaasieke vɔ ɖekɛ |
| Faroese | níggjuhundraðogníti tusin og níggjuhundraðognítiein |
| Filipino | siyám na daán at siyám na pû libó’t siyám na daán at siyám na pû’t isá |
| Finnish | yhdeksänsataayhdeksänkymmentätuhattayhdeksänsataayhdeksänkymmentäyksi |
| French | neuf cent quatre-vingt-dix mille neuf cent quatre-vingt-onze |
| Greek | εννιακόσιες εννενήντα χίλιάδες εννιακόσια εννενήντα ένα |
| German | neunhundertneunzigtausendneunhunderteinundneunzig |
| Hebrew | תשע מאות תשעים אלף תשע מאות תשעים ואחת |
| Hindi | नौ लाख नब्बे हज़ार नौ सौ इक्यानबे |
| Hungarian | kilencszázkilencvenezerkilencszázkilencvenegy |
| Icelandic | níuhundrað og níutíu þúsund og níuhundrað og níutíu og einn |
| Indonesian | sembilan ratus sembilan puluh ribu sembilan ratus sembilan puluh satu |
| Italian | novecentonovantamilanovecentonovantuno |
| Japanese | 九十九万九百九十一 |
| Korean | 구십구만 구백구십일 |
| Latvian | deviņsimt deviņdesmit tūkstoši deviņsimt deviņdesmit viens |
| Lithuanian | devyni šimtai devyniasdešimt tūkstančių devyni šimtai devyniasdešimt vienas |
| Norwegian | ni hundre og nitti tusen ni hundre og nittién |
| Persian | نهصد و نود هزار و نهصد و نود و یک |
| Polish | dziewięćset dziewięćdziesiąt tysięcy dziewięćset dziewięćdziesiąt jeden |
| Portuguese | novecentos e noventa mil novecentos e noventa e um |
| Romanian | nouă sute nouăzeci mii nouă sute nouăzeci şi unu |
| Russian | девятьсот девяносто тысяч девятьсот девяносто один |
| Serbian | деветсто деведесет хиљада деветсто деведесет и један |
| Slovak | deväťsto deväťdesiat tisíc deväťsto deväťdesiatjeden |
| Slovene | devetsto devetdeset tisuću devetsto devetdeset ena |
| Spanish | novecientos noventa mil novecientos noventa y uno |
| Swahili | elfu mia tisa na tisini, mia tisa na tisini na moja |
| Swedish | niohundranittiotusenniohundranittioen |
| Thai | เก้าแสนเก้าหมื่นเก้าร้อยเก้าสิบเอ็ด |
| Turkish | dokuz yüz doksan bin dokuz yüz doksan bir |
| Ukrainian | девʼятсот девʼяносто тисяч девʼятсот девʼяносто один |
| Vietnamese | chín trăm chín mươi nghìn chín trăm chín mươi mốt |
| Number 990991 reversed | 199099 | |
| Unicode Character | U+F1F0F | |
| Hexadecimal color | #990991 | |
| Unix Timestamp | Mon, 12 Jan 1970 11:16:31 +0000 | |