| Nominal | 640000 |
| Cardinal | six hundred forty thousand |
Cardinal six hundred forty thousand | |
| Ordinal | 640,000th |
| Number of digits | 6 |
| Sum of digits | 10 |
| Product of digits | 0 |
| Number parity | Even |
| Prime factorization | 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5 |
| Prime factorization in exponent form | 210 x 54 |
| Prime factors | 2, 5 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 14 |
| Sum of prime factors | 7 |
| Product of prime factors | 10 |
| Is 640000 a prime number? | No |
| Is 640000 a semiprime number? | No |
| Is 640000 a Chen prime number? | No |
| Is 640000 a Mersenne prime number? | No |
| Is 640000 a Catalan number? | No |
| Is 640000 a Fibonacci number? | No |
| Is 640000 a Idoneal number? | No |
| Base | System | Value |
|---|---|---|
| 2 | Binary | 100111000100000000002 |
| 3 | Ternary | 10121112202013 |
| 4 | Quaternary | 21301000004 |
| 5 | Quinary | 1304400005 |
| 6 | Senary | 214145446 |
| 7 | Septenary | 53036147 |
| 8 | Octal | 23420008 |
| 9 | Nonary | 11748219 |
| 10 | Decimal | 640000 |
| 12 | Duodecimal | 26a45412 |
| 16 | Hexadecimal | 9c40016 |
| 20 | Vigesimal | 4000020 |
| 36 | Base36 | dpts36 |
| 60 | Sexagesimal | 2vke60 |
| Square of 640000 (n2) | 409600000000 |
| Cube of 640000 (n3) | 262144000000000000 |
| Square root of 640000 | 800 |
| Natural Logarithm (ln) of 640000 | 13.369223455336 |
| Decimal Logarithm (log) of 640000 | 5.8061799739839 |
| Sine of 640000 | 0.85616224431777 |
| Cosecant of 640000 | 1.1680029184151 |
| Cosine of 640000 | 0.51670708472477 |
| Secant of 640000 | 1.9353324728123 |
| Tangent of 640000 | 1.656958593424 |
| Cotangent of 640000 | 0.6035153829243 |
| The spelling of 640000 in words is "six hundred forty thousand", meaning that: |
| 640000 is not an aban number (as it contains the letter a) |
| 640000 is not an eban number (as it contains the letter e) |
| 640000 is not an iban number (as it contains the letter i) |
| 640000 is not an oban number (as it contains the letter o) |
| 640000 is not a tban number (as it contains the letter t) |
| 640000 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৬৪০০০০ |
| Eastern Arabic numerals | ٦٤٠٬٠٠٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆐𓆐𓆐𓆐𓆐𓆐𓂭𓂭𓂭𓂭 |
| Khmer numerals | ៦៤០០០០ |
| Japanese numerals | 六十四万 |
| Roman numerals | n/a |
| Thai numerals | ๖๔๐๐๐๐ |
| Arabic | ستة مائة و أربعون ألف |
| Croatian | šeststo četrdeset tisuća |
| Czech | šest set čtyřicet tisíc |
| Danish | seks hundrede fyrre tusinde |
| Dutch | zeshonderdveertigduizend |
| Estonian | akpe alafa ade kple blaene |
| Faroese | sekshundraðogfýrati tusin |
| Filipino | anim na daán at ápat na pû libó |
| Finnish | kuusisataaneljäkymmentätuhatta |
| French | six cent quarante mille |
| Greek | εξακόσιες σαράντα χίλιάδες |
| German | sechshundertvierzigtausend |
| Hebrew | שש מאות ארבעים אלף |
| Hindi | छह लाख चालीस हज़ार |
| Hungarian | hatszáznegyvenezer |
| Icelandic | sexhundrað og fjörutíu þúsund |
| Indonesian | enam ratus empat puluh ribu |
| Italian | seicentoquarantamila |
| Japanese | 六十四万 |
| Korean | 육십사만 |
| Latvian | sešsimt četrdesmit tūkstoši |
| Lithuanian | šeši šimtai keturiasdešimt tūkstančių |
| Norwegian | seks hundre og førti tusen |
| Persian | ششصد و چهل هزار |
| Polish | sześćset czterdzieści tysięcy |
| Portuguese | seiscentos e quarenta mil |
| Romanian | şase sute patruzeci mii |
| Russian | шестьсот сорок тысяч |
| Serbian | шестсто четрдесет хиљада |
| Slovak | šesťsto štyridsať tisíc |
| Slovene | šesto štirideset tisuću |
| Spanish | seiscientos cuarenta mil |
| Swahili | elfu mia sita na arobaini |
| Swedish | sexhundrafyrtiotusen |
| Thai | หกแสนสี่หมื่น |
| Turkish | altı yüz kırk bin |
| Ukrainian | шістсот сорок тисяч |
| Vietnamese | sáu trăm bốn mươi nghìn |
| Number 640000 reversed | 000046 | |
| Unicode Character | U+9C400 | |
| Hexadecimal color | #640000 | |
| Unix Timestamp | Thu, 08 Jan 1970 09:46:40 +0000 | |