| Nominal | 640940 |
| Cardinal | six hundred forty thousand nine hundred forty |
Cardinal six hundred forty thousand nine hundred forty | |
| Ordinal | 640,940th |
| Number of digits | 6 |
| Sum of digits | 23 |
| Product of digits | 0 |
| Number parity | Even |
| Prime factorization | 2 x 2 x 5 x 73 x 439 |
| Prime factorization in exponent form | 22 x 5 x 73 x 439 |
| Prime factors | 2, 5, 73, 439 |
| Number of distinct prime factors ω(n) | 4 |
| Total number of prime factors Ω(n) | 5 |
| Sum of prime factors | 519 |
| Product of prime factors | 320470 |
| Is 640940 a prime number? | No |
| Is 640940 a semiprime number? | No |
| Is 640940 a Chen prime number? | No |
| Is 640940 a Mersenne prime number? | No |
| Is 640940 a Catalan number? | No |
| Is 640940 a Fibonacci number? | No |
| Is 640940 a Idoneal number? | No |
| Base | System | Value |
|---|---|---|
| 2 | Binary | 100111000111101011002 |
| 3 | Ternary | 10121200121123 |
| 4 | Quaternary | 21301322304 |
| 5 | Quinary | 1310022305 |
| 6 | Senary | 214231526 |
| 7 | Septenary | 53064267 |
| 8 | Octal | 23436548 |
| 9 | Nonary | 11761759 |
| 10 | Decimal | 640940 |
| 12 | Duodecimal | 26aab812 |
| 16 | Hexadecimal | 9c7ac16 |
| 20 | Vigesimal | 4027020 |
| 36 | Base36 | dqjw36 |
| 60 | Sexagesimal | 2w2K60 |
| Square of 640940 (n2) | 410804083600 |
| Cube of 640940 (n3) | 263300769342584000 |
| Square root of 640940 | 800.58728443562 |
| Natural Logarithm (ln) of 640940 | 13.370691127778 |
| Decimal Logarithm (log) of 640940 | 5.8068173760266 |
| Sine of 640940 | -0.99271300097146 |
| Cosecant of 640940 | -1.007340489166 |
| Cosine of 640940 | 0.12050268753116 |
| Secant of 640940 | 8.2985701023591 |
| Tangent of 640940 | -8.2380984300849 |
| Cotangent of 640940 | -0.12138723620345 |
| The spelling of 640940 in words is "six hundred forty thousand nine hundred forty", meaning that: |
| 640940 is not an aban number (as it contains the letter a) |
| 640940 is not an eban number (as it contains the letter e) |
| 640940 is not an iban number (as it contains the letter i) |
| 640940 is not an oban number (as it contains the letter o) |
| 640940 is not a tban number (as it contains the letter t) |
| 640940 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৬৪০৯৪০ |
| Eastern Arabic numerals | ٦٤٠٬٩٤٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆐𓆐𓆐𓆐𓆐𓆐𓂭𓂭𓂭𓂭𓍪𓎉 |
| Khmer numerals | ៦៤០៩៤០ |
| Japanese numerals | 六十四万九百四十 |
| Roman numerals | n/a |
| Thai numerals | ๖๔๐๙๔๐ |
| Arabic | ستة مائة و أربعون ألف و تسعة مائة و أربعون |
| Croatian | šeststo četrdeset tisuća devetsto četrdeset |
| Czech | šest set čtyřicet tisíc devět set čtyřicet |
| Danish | seks hundrede fyrre tusinde ni hundrede fyrre |
| Dutch | zeshonderdveertigduizend negenhonderdveertig |
| Estonian | akpe alafa ade kple blaene alafa asieke kple blaene |
| Faroese | sekshundraðogfýrati tusin og níggjuhundraðogfýrati |
| Filipino | anim na daán at ápat na pû libó’t siyám na daán at ápat na pû |
| Finnish | kuusisataaneljäkymmentätuhattayhdeksänsataaneljäkymmentä |
| French | six cent quarante mille neuf cent quarante |
| Greek | εξακόσιες σαράντα χίλιάδες εννιακόσια σαράντα |
| German | sechshundertvierzigtausendneunhundertvierzig |
| Hebrew | שש מאות ארבעים אלף תשע מאות ארבעים |
| Hindi | छह लाख चालीस हज़ार नौ सौ चालीस |
| Hungarian | hatszáznegyvenezerkilencszáznegyven |
| Icelandic | sexhundrað og fjörutíu þúsund og níuhundrað og fjörutíu |
| Indonesian | enam ratus empat puluh ribu sembilan ratus empat puluh |
| Italian | seicentoquarantamilanovecentoquaranta |
| Japanese | 六十四万九百四十 |
| Korean | 육십사만 구백사십 |
| Latvian | sešsimt četrdesmit tūkstoši deviņsimt četrdesmit |
| Lithuanian | šeši šimtai keturiasdešimt tūkstančių devyni šimtai keturiasdešimt |
| Norwegian | seks hundre og førti tusen ni hundre og førti |
| Persian | ششصد و چهل هزار و نهصد و چهل |
| Polish | sześćset czterdzieści tysięcy dziewięćset czterdzieści |
| Portuguese | seiscentos e quarenta mil novecentos e quarenta |
| Romanian | şase sute patruzeci mii nouă sute patruzeci |
| Russian | шестьсот сорок тысяч девятьсот сорок |
| Serbian | шестсто четрдесет хиљада деветсто четрдесет |
| Slovak | šesťsto štyridsať tisíc deväťsto štyridsať |
| Slovene | šesto štirideset tisuću devetsto štirideset |
| Spanish | seiscientos cuarenta mil novecientos cuarenta |
| Swahili | elfu mia sita na arobaini, mia tisa na arobaini |
| Swedish | sexhundrafyrtiotusenniohundrafyrtio |
| Thai | หกแสนสี่หมื่นเก้าร้อยสี่สิบ |
| Turkish | altı yüz kırk bin dokuz yüz kırk |
| Ukrainian | шістсот сорок тисяч девʼятсот сорок |
| Vietnamese | sáu trăm bốn mươi nghìn chín trăm bốn mươi |
| Number 640940 reversed | 049046 | |
| Unicode Character | U+9C7AC | |
| Hexadecimal color | #640940 | |
| Unix Timestamp | Thu, 08 Jan 1970 10:02:20 +0000 | |