| Nominal | 31990 |
| Cardinal | thirty-one thousand nine hundred ninety |
Cardinal thirty-one thousand nine hundred ninety | |
| Ordinal | 31,990th |
| Number of digits | 5 |
| Sum of digits | 22 |
| Product of digits | 0 |
| Number parity | Even |
| Prime factorization | 2 x 5 x 7 x 457 |
| Prime factors | 2, 5, 7, 457 |
| Number of distinct prime factors ω(n) | 4 |
| Total number of prime factors Ω(n) | 4 |
| Sum of prime factors | 471 |
| Product of prime factors | 31990 |
| Is 31990 a prime number? | No |
| Is 31990 a semiprime number? | No |
| Is 31990 a Chen prime number? | No |
| Is 31990 a Mersenne prime number? | No |
| Is 31990 a Catalan number? | No |
| Is 31990 a Fibonacci number? | No |
| Is 31990 a Idoneal number? | No |
| Square of 31990 (n2) | 1023360100 |
| Cube of 31990 (n3) | 32737289599000 |
| Square root of 31990 | 178.85748516626 |
| Natural Logarithm (ln) of 31990 | 10.373178632944 |
| Decimal Logarithm (log) of 31990 | 4.5050142400841 |
| Sine of 31990 | 0.74330102306911 |
| Cosecant of 31990 | 1.3453499577748 |
| Cosine of 31990 | -0.6689570906302 |
| Secant of 31990 | -1.4948641908526 |
| Tangent of 31990 | -1.1111340824101 |
| Cotangent of 31990 | -0.8999813936325 |
| The spelling of 31990 in words is "thirty-one thousand nine hundred ninety", meaning that: |
| 31990 is not an aban number (as it contains the letter a) |
| 31990 is not an eban number (as it contains the letter e) |
| 31990 is not an iban number (as it contains the letter i) |
| 31990 is not an oban number (as it contains the letter o) |
| 31990 is not a tban number (as it contains the letter t) |
| 31990 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৩১৯৯০ |
| Eastern Arabic numerals | ٣١٬٩٩٠ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓆼𓍪𓎎 |
| Khmer numerals | ៣១៩៩០ |
| Japanese numerals | 三万千九百九十 |
| Roman numerals | n/a |
| Thai numerals | ๓๑๙๙๐ |
| Arabic | واحد و ثلاثون ألف و تسعة مائة و تسعون |
| Croatian | trideset i jedna tisuća devetsto devedeset |
| Czech | třicet jedna tisíc devět set devadesát |
| Danish | en og tredive tusinde ni hundrede halvfems |
| Dutch | éénendertigduizend negenhonderdnegentig |
| Estonian | akpe blaetɔ̃ vɔ ɖekɛ alafa asieke kple blaasieke |
| Faroese | tríatieitt tusin og níggjuhundraðogníti |
| Filipino | tatlóng pû’t isáng libó’t siyám na daán at siyám na pû |
| Finnish | kolmekymmentäyksituhattayhdeksänsataayhdeksänkymmentä |
| French | trente et un mille neuf cent quatre-vingt-dix |
| Greek | τριάντα μία χίλιάδες εννιακόσια εννενήντα |
| German | einunddreißigtausendneunhundertneunzig |
| Hebrew | שלושים ואחד אלף תשע מאות תשעים |
| Hindi | इकतीस हज़ार नौ सौ नब्बे |
| Hungarian | harmincegyezerkilencszázkilencven |
| Icelandic | þrjátíu og eitt þúsund og níuhundrað og níutíu |
| Indonesian | tiga puluh satu ribu sembilan ratus sembilan puluh |
| Italian | trent e unmilanovecentonovanta |
| Japanese | 三万千九百九十 |
| Korean | 삼만 천구백구십 |
| Latvian | trīsdesmit viens tūkstoši deviņsimt deviņdesmit |
| Lithuanian | trisdešimt vienas tūkstantis devyni šimtai devyniasdešimt |
| Norwegian | trettiett tusen ni hundre og nitti |
| Persian | سی و یک هزار و نهصد و نود |
| Polish | trzydzieści jeden tysięcy dziewięćset dziewięćdziesiąt |
| Portuguese | trinta e um mil novecentos e noventa |
| Romanian | treizeci şi una mii nouă sute nouăzeci |
| Russian | тридцать одна тысяча девятьсот девяносто |
| Serbian | тридесет и једна хиљада деветсто деведесет |
| Slovak | tridsaťjedna tisíc deväťsto deväťdesiat |
| Slovene | trideset ena tisuću devetsto devetdeset |
| Spanish | treinta y un mil novecientos noventa |
| Swahili | elfu thelathini na moja, mia tisa na tisini |
| Swedish | trettioentusenniohundranittio |
| Thai | สามหมื่นหนึ่งพันเก้าร้อยเก้าสิบ |
| Turkish | otuz bir bin dokuz yüz doksan |
| Ukrainian | тридцять одна тисяча девʼятсот девʼяносто |
| Vietnamese | ba mươi mốt nghìn chín trăm chín mươi |
| Number 31990 reversed | 09913 | |
| Unicode Character | U+7CF6 | 糶 |
| Unix Timestamp | Thu, 01 Jan 1970 08:53:10 +0000 | |