| Nominal | 990021 |
| Cardinal | nine hundred ninety thousand twenty-one |
Cardinal nine hundred ninety thousand twenty-one | |
| Ordinal | 990,021st |
| Number of digits | 6 |
| Sum of digits | 21 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 3 x 331 x 997 |
| Prime factors | 3, 331, 997 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 1331 |
| Product of prime factors | 990021 |
| Is 990021 a prime number? | No |
| Is 990021 a semiprime number? | No |
| Is 990021 a Chen prime number? | No |
| Is 990021 a Mersenne prime number? | No |
| Is 990021 a Catalan number? | No |
| Is 990021 a Fibonacci number? | No |
| Is 990021 a Idoneal number? | No |
| Base | System | Value |
|---|---|---|
| 2 | Binary | 111100011011010001012 |
| 3 | Ternary | 12120220011103 |
| 4 | Quaternary | 33012310114 |
| 5 | Quinary | 2231400415 |
| 6 | Senary | 331152336 |
| 7 | Septenary | 112622347 |
| 8 | Octal | 36155058 |
| 9 | Nonary | 17680439 |
| 10 | Decimal | 990021 |
| 12 | Duodecimal | 3b8b1912 |
| 16 | Hexadecimal | f1b4516 |
| 20 | Vigesimal | 63f1120 |
| 36 | Base36 | l7wl36 |
| 60 | Sexagesimal | 4Z0L60 |
| Square of 990021 (n2) | 980141580441 |
| Cube of 990021 (n3) | 970360747609779261 |
| Square root of 990021 | 994.99798994772 |
| Natural Logarithm (ln) of 990021 | 13.805481434007 |
| Decimal Logarithm (log) of 990021 | 5.995644406807 |
| Sine of 990021 | -0.99608642688212 |
| Cosecant of 990021 | -1.0039289493484 |
| Cosine of 990021 | -0.088384558499831 |
| Secant of 990021 | -11.314193530784 |
| Tangent of 990021 | 11.269914607132 |
| Cotangent of 990021 | 0.08873181695336 |
| The spelling of 990021 in words is "nine hundred ninety thousand twenty-one", meaning that: |
| 990021 is not an aban number (as it contains the letter a) |
| 990021 is not an eban number (as it contains the letter e) |
| 990021 is not an iban number (as it contains the letter i) |
| 990021 is not an oban number (as it contains the letter o) |
| 990021 is not a tban number (as it contains the letter t) |
| 990021 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৯৯০০২১ |
| Eastern Arabic numerals | ٩٩٠٬٠٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓎇𓏺 |
| Khmer numerals | ៩៩០០២១ |
| Japanese numerals | 九十九万二十一 |
| Roman numerals | n/a |
| Thai numerals | ๙๙๐๐๒๑ |
| Arabic | تسعة مائة و تسعون ألف و واحد و عشرون |
| Croatian | devetsto devedeset tisuća dvadeset i jedan |
| Czech | devět set devadesát tisíc dvacet jeden |
| Danish | ni hundrede halvfems tusinde og en og tyve |
| Dutch | negenhonderdnegentigduizend éénentwintig |
| Estonian | akpe alafa asieke kple blaasieke kpakple blaeve vɔ ɖekɛ |
| Faroese | níggjuhundraðogníti tusin og tjúgoein |
| Filipino | siyám na daán at siyám na pû libó’t dalawáng pû’t isá |
| Finnish | yhdeksänsataayhdeksänkymmentätuhattakaksikymmentäyksi |
| French | neuf cent quatre-vingt-dix mille vingt et un |
| Greek | εννιακόσιες εννενήντα χίλιάδες είκοσι ένα |
| German | neunhundertneunzigtausendeinundzwanzig |
| Hebrew | תשע מאות תשעים אלף עשרים ואחת |
| Hindi | नौ लाख नब्बे हज़ार इक्कीस |
| Hungarian | kilencszázkilencvenezerhuszonegy |
| Icelandic | níuhundrað og níutíu þúsund og tuttugu og einn |
| Indonesian | sembilan ratus sembilan puluh ribu dua puluh satu |
| Italian | novecentonovantamilaventuno |
| Japanese | 九十九万二十一 |
| Korean | 구십구만 이십일 |
| Latvian | deviņsimt deviņdesmit tūkstoši divdesmit viens |
| Lithuanian | devyni šimtai devyniasdešimt tūkstančių dvidešimt vienas |
| Norwegian | ni hundre og nitti tusen og tjueén |
| Persian | نهصد و نود هزار و بیست و یک |
| Polish | dziewięćset dziewięćdziesiąt tysięcy dwadzieścia jeden |
| Portuguese | novecentos e noventa mil e vinte e um |
| Romanian | nouă sute nouăzeci mii douăzeci şi unu |
| Russian | девятьсот девяносто тысяч двадцать один |
| Serbian | деветсто деведесет хиљада двадесет и један |
| Slovak | deväťsto deväťdesiat tisíc dvadsaťjeden |
| Slovene | devetsto devetdeset tisuću dvaset ena |
| Spanish | novecientos noventa mil veintiuno |
| Swahili | elfu mia tisa na tisini, ishirini na moja |
| Swedish | niohundranittiotusentjugoen |
| Thai | เก้าแสนเก้าหมื่นยี่สิบเอ็ด |
| Turkish | dokuz yüz doksan bin yirmi bir |
| Ukrainian | девʼятсот девʼяносто тисяч двадцять один |
| Vietnamese | chín trăm chín mươi nghìn không trăm hai mươi mốt |
| Number 990021 reversed | 120099 | |
| Unicode Character | U+F1B45 | |
| Hexadecimal color | #990021 | |
| Unix Timestamp | Mon, 12 Jan 1970 11:00:21 +0000 | |