| Nominal | 80981 |
| Cardinal | eighty thousand nine hundred eighty-one |
Cardinal eighty thousand nine hundred eighty-one | |
| Ordinal | 80,981st |
| Number of digits | 5 |
| Sum of digits | 26 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 47 x 1723 |
| Prime factors | 47, 1723 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 1770 |
| Product of prime factors | 80981 |
| Is 80981 a prime number? | No |
| Is 80981 a semiprime number? | Yes |
| Is 80981 a Chen prime number? | No |
| Is 80981 a Mersenne prime number? | No |
| Is 80981 a Catalan number? | No |
| Is 80981 a Fibonacci number? | No |
| Is 80981 a Idoneal number? | No |
| Square of 80981 (n2) | 6557922361 |
| Cube of 80981 (n3) | 531067110716141 |
| Square root of 80981 | 284.57160785996 |
| Natural Logarithm (ln) of 80981 | 11.301969838238 |
| Decimal Logarithm (log) of 80981 | 4.9083831353837 |
| Sine of 80981 | -0.1654047655001 |
| Cosecant of 80981 | -6.0457750233285 |
| Cosine of 80981 | -0.98622576702794 |
| Secant of 80981 | -1.0139666123443 |
| Tangent of 80981 | 0.16771490973974 |
| Cotangent of 80981 | 5.9624991096606 |
| The spelling of 80981 in words is "eighty thousand nine hundred eighty-one", meaning that: |
| 80981 is not an aban number (as it contains the letter a) |
| 80981 is not an eban number (as it contains the letter e) |
| 80981 is not an iban number (as it contains the letter i) |
| 80981 is not an oban number (as it contains the letter o) |
| 80981 is not a tban number (as it contains the letter t) |
| 80981 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৮০৯৮১ |
| Eastern Arabic numerals | ٨٠٬٩٨١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓍪𓎍𓏺 |
| Khmer numerals | ៨០៩៨១ |
| Japanese numerals | 八万九百八十一 |
| Roman numerals | n/a |
| Thai numerals | ๘๐๙๘๑ |
| Arabic | ثمانون ألف و تسعة مائة و واحد و ثمانون |
| Croatian | osamdeset tisuća devetsto osamdeset i jedan |
| Czech | osmdesát tisíc devět set osmdesát jeden |
| Danish | firs tusinde ni hundrede en og firs |
| Dutch | tachtigduizend negenhonderdéénentachtig |
| Estonian | akpe blaenyi alafa asieke blaenyi vɔ ɖekɛ |
| Faroese | áttati tusin og níggjuhundraðogáttatiein |
| Filipino | walóng pû libó’t siyám na daán at walóng pû’t isá |
| Finnish | kahdeksankymmentätuhattayhdeksänsataakahdeksankymmentäyksi |
| French | quatre-vingts mille neuf cent quatre-vingt-un |
| Greek | ογδόντα χίλιάδες εννιακόσια ογδόντα ένα |
| German | achtzigtausendneunhunderteinundachtzig |
| Hebrew | שמונים אלף תשע מאות שמונים ואחת |
| Hindi | अस्सी हज़ार नौ सौ इक्यासी |
| Hungarian | nyolcvanezerkilencszáznyolcvanegy |
| Icelandic | áttatíu þúsund og níuhundrað og áttatíu og einn |
| Indonesian | delapan puluh ribu sembilan ratus delapan puluh satu |
| Italian | ottantamilanovecentoottantuno |
| Japanese | 八万九百八十一 |
| Korean | 팔만 구백팔십일 |
| Latvian | astoņdesmit tūkstoši deviņsimt astoņdesmit viens |
| Lithuanian | aštuoniasdešimt tūkstančių devyni šimtai aštuoniasdešimt vienas |
| Norwegian | åtti tusen ni hundre og åttién |
| Persian | هشتاد هزار و نهصد و هشتاد و یک |
| Polish | osiemdziesiąt tysięcy dziewięćset osiemdziesiąt jeden |
| Portuguese | oitenta mil novecentos e oitenta e um |
| Romanian | optzeci mii nouă sute optzeci şi unu |
| Russian | восемьдесят тысяч девятьсот восемьдесят один |
| Serbian | осамдесет хиљада деветсто осамдесет и један |
| Slovak | osemdesiat tisíc deväťsto osemdesiatjeden |
| Slovene | osemdeset tisuću devetsto osemdeset ena |
| Spanish | ochenta mil novecientos ochenta y uno |
| Swahili | elfu themanini, mia tisa na themanini na moja |
| Swedish | åttiotusenniohundraåttioen |
| Thai | แปดหมื่นเก้าร้อยแปดสิบเอ็ด |
| Turkish | seksen bin dokuz yüz seksen bir |
| Ukrainian | вісімдесят тисяч девʼятсот вісімдесят один |
| Vietnamese | tám mươi nghìn chín trăm tám mươi mốt |
| Number 80981 reversed | 18908 | |
| Unicode Character | U+13C55 | |
| Unix Timestamp | Thu, 01 Jan 1970 22:29:41 +0000 | |