| Nominal | 15985 |
| Cardinal | fifteen thousand nine hundred eighty-five |
Cardinal fifteen thousand nine hundred eighty-five | |
| Ordinal | 15,985th |
| Number of digits | 5 |
| Sum of digits | 28 |
| Product of digits | 1800 |
| Number parity | Odd |
| Prime factorization | 5 x 23 x 139 |
| Prime factors | 5, 23, 139 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 167 |
| Product of prime factors | 15985 |
| Is 15985 a prime number? | No |
| Is 15985 a semiprime number? | No |
| Is 15985 a Chen prime number? | No |
| Is 15985 a Mersenne prime number? | No |
| Is 15985 a Catalan number? | No |
| Is 15985 a Fibonacci number? | No |
| Is 15985 a Idoneal number? | No |
| Square of 15985 (n2) | 255520225 |
| Cube of 15985 (n3) | 4084490796625 |
| Square root of 15985 | 126.43179979736 |
| Natural Logarithm (ln) of 15985 | 9.6794060614939 |
| Decimal Logarithm (log) of 15985 | 4.2037126406077 |
| Sine of 15985 | 0.54515880710905 |
| Cosecant of 15985 | 1.8343278820037 |
| Cosine of 15985 | 0.83833279491586 |
| Secant of 15985 | 1.1928437084468 |
| Tangent of 15985 | 0.65028925316439 |
| Cotangent of 15985 | 1.5377772201122 |
| The spelling of 15985 in words is "fifteen thousand nine hundred eighty-five", meaning that: |
| 15985 is not an aban number (as it contains the letter a) |
| 15985 is not an eban number (as it contains the letter e) |
| 15985 is not an iban number (as it contains the letter i) |
| 15985 is not an oban number (as it contains the letter o) |
| 15985 is not a tban number (as it contains the letter t) |
| 15985 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১৫৯৮৫ |
| Eastern Arabic numerals | ١٥٬٩٨٥ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓆼𓆼𓆼𓆼𓆼𓍪𓎍𓏾 |
| Khmer numerals | ១៥៩៨៥ |
| Japanese numerals | 一万五千九百八十五 |
| Roman numerals | n/a |
| Thai numerals | ๑๕๙๘๕ |
| Arabic | خمسة عشر ألف و تسعة مائة و خمسة و ثمانون |
| Croatian | petnaest tisuća devetsto osamdeset i pet |
| Czech | patnáct tisíc devět set osmdesát pět |
| Danish | femten tusinde ni hundrede fem og firs |
| Dutch | vijftienduizend negenhonderdvijfentachtig |
| Estonian | akpe wuiatɔ̃ alafa asieke blaenyi vɔ atɔ̃ |
| Faroese | fímtan tusin og níggjuhundraðogáttatifimm |
| Filipino | labíng-limáng libó’t siyám na daán at walóng pû’t limá |
| Finnish | viisitoistatuhattayhdeksänsataakahdeksankymmentäviisi |
| French | quinze mille neuf cent quatre-vingt-cinq |
| Greek | δεκαπέντε χίλιάδες εννιακόσια ογδόντα πέντε |
| German | fünfzehntausendneunhundertfünfundachtzig |
| Hebrew | חמישה עשר אלף תשע מאות שמונים וחמש |
| Hindi | पन्द्रह हज़ार नौ सौ पचासी |
| Hungarian | tizenötezerkilencszáznyolcvanöt |
| Icelandic | fimmtán þúsund og níuhundrað og áttatíu og fimm |
| Indonesian | lima belas ribu sembilan ratus delapan puluh lima |
| Italian | quindicimilanovecentoottantacinque |
| Japanese | 一万五千九百八十五 |
| Korean | 만 오천구백팔십오 |
| Latvian | piecpadsmit tūkstoši deviņsimt astoņdesmit pieci |
| Lithuanian | penkiolika tūkstančių devyni šimtai aštuoniasdešimt penki |
| Norwegian | femten tusen ni hundre og åttifem |
| Persian | پانزده هزار و نهصد و هشتاد و پنج |
| Polish | piętnaście tysięcy dziewięćset osiemdziesiąt pięć |
| Portuguese | quinze mil novecentos e oitenta e cinco |
| Romanian | cincisprezece mii nouă sute optzeci şi cinci |
| Russian | пятнадцать тысяч девятьсот восемьдесят пять |
| Serbian | петнаест хиљада деветсто осамдесет и пет |
| Slovak | pätnásť tisíc deväťsto osemdesiatpäť |
| Slovene | petnajst tisuću devetsto osemdeset pet |
| Spanish | quince mil novecientos ochenta y cinco |
| Swahili | elfu kumi na tano, mia tisa na themanini na tano |
| Swedish | femtontusenniohundraåttiofem |
| Thai | หนึ่งหมื่นห้าพันเก้าร้อยแปดสิบห้า |
| Turkish | on beş bin dokuz yüz seksen beş |
| Ukrainian | пʼятнадцять тисяч девʼятсот вісімдесят пʼять |
| Vietnamese | mười lăm nghìn chín trăm tám mươi lăm |
| Number 15985 reversed | 58951 | |
| Unicode Character | U+3E71 | 㹱 |
| Unix Timestamp | Thu, 01 Jan 1970 04:26:25 +0000 | |