| Nominal | 13891 |
| Cardinal | thirteen thousand eight hundred ninety-one |
Cardinal thirteen thousand eight hundred ninety-one | |
| Ordinal | 13,891st |
| Number of digits | 5 |
| Sum of digits | 22 |
| Product of digits | 216 |
| Number parity | Odd |
| Prime factorization | 29 x 479 |
| Prime factors | 29, 479 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 508 |
| Product of prime factors | 13891 |
| Is 13891 a prime number? | No |
| Is 13891 a semiprime number? | Yes |
| Is 13891 a Chen prime number? | No |
| Is 13891 a Mersenne prime number? | No |
| Is 13891 a Catalan number? | No |
| Is 13891 a Fibonacci number? | No |
| Is 13891 a Idoneal number? | No |
| Square of 13891 (n2) | 192959881 |
| Cube of 13891 (n3) | 2680405706971 |
| Square root of 13891 | 117.86008654332 |
| Natural Logarithm (ln) of 13891 | 9.5389964273974 |
| Decimal Logarithm (log) of 13891 | 4.1427335113135 |
| Sine of 13891 | -0.90127964331987 |
| Cosecant of 13891 | -1.1095335475641 |
| Cosine of 13891 | 0.4332378152207 |
| Secant of 13891 | 2.3082010961822 |
| Tangent of 13891 | -2.0803346606776 |
| Cotangent of 13891 | -0.48069189006075 |
| The spelling of 13891 in words is "thirteen thousand eight hundred ninety-one", meaning that: |
| 13891 is not an aban number (as it contains the letter a) |
| 13891 is not an eban number (as it contains the letter e) |
| 13891 is not an iban number (as it contains the letter i) |
| 13891 is not an oban number (as it contains the letter o) |
| 13891 is not a tban number (as it contains the letter t) |
| 13891 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১৩৮৯১ |
| Eastern Arabic numerals | ١٣٬٨٩١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓆼𓆼𓆼𓍩𓎎𓏺 |
| Khmer numerals | ១៣៨៩១ |
| Japanese numerals | 一万三千八百九十一 |
| Roman numerals | n/a |
| Thai numerals | ๑๓๘๙๑ |
| Arabic | ثلاثة عشر ألف و ثمانية مائة و واحد و تسعون |
| Croatian | trinaest tisuća osamsto devedeset i jedan |
| Czech | třináct tisíc osm set devadesát jeden |
| Danish | tretten tusinde otte hundrede en og halvfems |
| Dutch | dertienduizend achthonderdéénennegentig |
| Estonian | akpe wuietɔ̃ alafa enyi blaasieke vɔ ɖekɛ |
| Faroese | trettan tusin og áttahundraðognítiein |
| Filipino | labíng-tatlóng libó’t walóng daán at siyám na pû’t isá |
| Finnish | kolmetoistatuhattakahdeksansataayhdeksänkymmentäyksi |
| French | treize mille huit cent quatre-vingt-onze |
| Greek | δεκατρεις χίλιάδες οκτακόσια εννενήντα ένα |
| German | dreizehntausendachthunderteinundneunzig |
| Hebrew | שלושה עשר אלף שמונה מאות תשעים ואחת |
| Hindi | तेरह हज़ार आठ सौ इक्यानबे |
| Hungarian | tizenháromezernyolcszázkilencvenegy |
| Icelandic | þrettán þúsund og áttahundrað og níutíu og einn |
| Indonesian | tiga belas ribu delapan ratus sembilan puluh satu |
| Italian | tredicimilaottocentonovantuno |
| Japanese | 一万三千八百九十一 |
| Korean | 만 삼천팔백구십일 |
| Latvian | trīspadsmit tūkstoši astoņsimt deviņdesmit viens |
| Lithuanian | trylika tūkstančių aštuoni šimtai devyniasdešimt vienas |
| Norwegian | tretten tusen åtte hundre og nittién |
| Persian | سیزده هزار و هشتصد و نود و یک |
| Polish | trzynaście tysięcy osiemset dziewięćdziesiąt jeden |
| Portuguese | treze mil oitocentos e noventa e um |
| Romanian | treisprezece mii opt sute nouăzeci şi unu |
| Russian | тринадцать тысяч восемьсот девяносто один |
| Serbian | тринаест хиљада осамсто деведесет и један |
| Slovak | trinásť tisíc osemsto deväťdesiatjeden |
| Slovene | trinajst tisuću osemsto devetdeset ena |
| Spanish | trece mil ochocientos noventa y uno |
| Swahili | elfu kumi na tatu, mia nane na tisini na moja |
| Swedish | trettontusenåttahundranittioen |
| Thai | หนึ่งหมื่นสามพันแปดร้อยเก้าสิบเอ็ด |
| Turkish | on üç bin sekiz yüz doksan bir |
| Ukrainian | тринадцять тисяч вісімсот девʼяносто один |
| Vietnamese | mười ba nghìn tám trăm chín mươi mốt |
| Number 13891 reversed | 19831 | |
| Unicode Character | U+3643 | 㙃 |
| Unix Timestamp | Thu, 01 Jan 1970 03:51:31 +0000 | |