| Nominal | 30981 |
| Cardinal | thirty thousand nine hundred eighty-one |
Cardinal thirty thousand nine hundred eighty-one | |
| Ordinal | 30,981st |
| Number of digits | 5 |
| Sum of digits | 21 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 3 x 23 x 449 |
| Prime factors | 3, 23, 449 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 475 |
| Product of prime factors | 30981 |
| Is 30981 a prime number? | No |
| Is 30981 a semiprime number? | No |
| Is 30981 a Chen prime number? | No |
| Is 30981 a Mersenne prime number? | No |
| Is 30981 a Catalan number? | No |
| Is 30981 a Fibonacci number? | No |
| Is 30981 a Idoneal number? | No |
| Square of 30981 (n2) | 959822361 |
| Cube of 30981 (n3) | 29736256566141 |
| Square root of 30981 | 176.01420397229 |
| Natural Logarithm (ln) of 30981 | 10.34112939234 |
| Decimal Logarithm (log) of 30981 | 4.4910954317406 |
| Sine of 30981 | -0.98311117405951 |
| Cosecant of 30981 | -1.0171789583784 |
| Cosine of 30981 | 0.18300934249194 |
| Secant of 30981 | 5.4642019165991 |
| Tangent of 30981 | -5.3719179615259 |
| Cotangent of 30981 | -0.18615325236947 |
| The spelling of 30981 in words is "thirty thousand nine hundred eighty-one", meaning that: |
| 30981 is not an aban number (as it contains the letter a) |
| 30981 is not an eban number (as it contains the letter e) |
| 30981 is not an iban number (as it contains the letter i) |
| 30981 is not an oban number (as it contains the letter o) |
| 30981 is not a tban number (as it contains the letter t) |
| 30981 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৩০৯৮১ |
| Eastern Arabic numerals | ٣٠٬٩٨١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓍪𓎍𓏺 |
| Khmer numerals | ៣០៩៨១ |
| Japanese numerals | 三万九百八十一 |
| Roman numerals | n/a |
| Thai numerals | ๓๐๙๘๑ |
| Arabic | ثلاثون ألف و تسعة مائة و واحد و ثمانون |
| Croatian | trideset tisuća devetsto osamdeset i jedan |
| Czech | třicet tisíc devět set osmdesát jeden |
| Danish | tredive tusinde ni hundrede en og firs |
| Dutch | dertigduizend negenhonderdéénentachtig |
| Estonian | akpe blaetɔ̃ alafa asieke blaenyi vɔ ɖekɛ |
| Faroese | tríati tusin og níggjuhundraðogáttatiein |
| Filipino | tatlóng pû libó’t siyám na daán at walóng pû’t isá |
| Finnish | kolmekymmentätuhattayhdeksänsataakahdeksankymmentäyksi |
| French | trente mille neuf cent quatre-vingt-un |
| Greek | τριάντα χίλιάδες εννιακόσια ογδόντα ένα |
| German | dreißigtausendneunhunderteinundachtzig |
| Hebrew | שלושים אלף תשע מאות שמונים ואחת |
| Hindi | तीस हज़ार नौ सौ इक्यासी |
| Hungarian | harmincezerkilencszáznyolcvanegy |
| Icelandic | þrjátíu þúsund og níuhundrað og áttatíu og einn |
| Indonesian | tiga puluh ribu sembilan ratus delapan puluh satu |
| Italian | trentamilanovecentoottantuno |
| Japanese | 三万九百八十一 |
| Korean | 삼만 구백팔십일 |
| Latvian | trīsdesmit tūkstoši deviņsimt astoņdesmit viens |
| Lithuanian | trisdešimt tūkstančių devyni šimtai aštuoniasdešimt vienas |
| Norwegian | tretti tusen ni hundre og åttién |
| Persian | سی هزار و نهصد و هشتاد و یک |
| Polish | trzydzieści tysięcy dziewięćset osiemdziesiąt jeden |
| Portuguese | trinta mil novecentos e oitenta e um |
| Romanian | treizeci mii nouă sute optzeci şi unu |
| Russian | тридцать тысяч девятьсот восемьдесят один |
| Serbian | тридесет хиљада деветсто осамдесет и један |
| Slovak | tridsať tisíc deväťsto osemdesiatjeden |
| Slovene | trideset tisuću devetsto osemdeset ena |
| Spanish | treinta mil novecientos ochenta y uno |
| Swahili | elfu thelathini, mia tisa na themanini na moja |
| Swedish | trettiotusenniohundraåttioen |
| Thai | สามหมื่นเก้าร้อยแปดสิบเอ็ด |
| Turkish | otuz bin dokuz yüz seksen bir |
| Ukrainian | тридцять тисяч девʼятсот вісімдесят один |
| Vietnamese | ba mươi nghìn chín trăm tám mươi mốt |
| Number 30981 reversed | 18903 | |
| Unicode Character | U+7905 | 礅 |
| Unix Timestamp | Thu, 01 Jan 1970 08:36:21 +0000 | |