| Nominal | 19998 |
| Cardinal | nineteen thousand nine hundred ninety-eight |
Cardinal nineteen thousand nine hundred ninety-eight | |
| Ordinal | 19,998th |
| Number of digits | 5 |
| Sum of digits | 36 |
| Product of digits | 5832 |
| Number parity | Even |
| Prime factorization | 2 x 3 x 3 x 11 x 101 |
| Prime factorization in exponent form | 2 x 32 x 11 x 101 |
| Prime factors | 2, 3, 11, 101 |
| Number of distinct prime factors ω(n) | 4 |
| Total number of prime factors Ω(n) | 5 |
| Sum of prime factors | 117 |
| Product of prime factors | 6666 |
| Is 19998 a prime number? | No |
| Is 19998 a semiprime number? | No |
| Is 19998 a Chen prime number? | No |
| Is 19998 a Mersenne prime number? | No |
| Is 19998 a Catalan number? | No |
| Is 19998 a Fibonacci number? | No |
| Is 19998 a Idoneal number? | No |
| Square of 19998 (n2) | 399920004 |
| Cube of 19998 (n3) | 7997600239992 |
| Square root of 19998 | 141.41428499271 |
| Natural Logarithm (ln) of 19998 | 9.9033875475358 |
| Decimal Logarithm (log) of 19998 | 4.3009865640442 |
| Sine of 19998 | -0.9816315037887 |
| Cosecant of 19998 | -1.0187122113954 |
| Cosine of 19998 | 0.19078676780515 |
| Secant of 19998 | 5.241453647463 |
| Tangent of 19998 | -5.1451760259979 |
| Cotangent of 19998 | -0.19435681013577 |
| The spelling of 19998 in words is "nineteen thousand nine hundred ninety-eight", meaning that: |
| 19998 is not an aban number (as it contains the letter a) |
| 19998 is not an eban number (as it contains the letter e) |
| 19998 is not an iban number (as it contains the letter i) |
| 19998 is not an oban number (as it contains the letter o) |
| 19998 is not a tban number (as it contains the letter t) |
| 19998 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১৯৯৯৮ |
| Eastern Arabic numerals | ١٩٬٩٩٨ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍪𓎎𓐁 |
| Khmer numerals | ១៩៩៩៨ |
| Japanese numerals | 一万九千九百九十八 |
| Roman numerals | n/a |
| Thai numerals | ๑๙๙๙๘ |
| Arabic | تسعة عشر ألف و تسعة مائة و ثمانية و تسعون |
| Croatian | devetnaest tisuća devetsto devedeset i osam |
| Czech | devatenáct tisíc devět set devadesát osm |
| Danish | nitten tusinde ni hundrede otte og halvfems |
| Dutch | negentienduizend negenhonderdachtennegentig |
| Estonian | akpe wuiasieke alafa asieke blaasieke vɔ enyi |
| Faroese | nítjan tusin og níggjuhundraðognítiátta |
| Filipino | labíng-siyám na libó’t siyám na daán at siyám na pû’t waló |
| Finnish | yhdeksäntoistatuhattayhdeksänsataayhdeksänkymmentäkahdeksan |
| French | dix-neuf mille neuf cent quatre-vingt-dix-huit |
| Greek | δεκαεννέα χίλιάδες εννιακόσια εννενήντα οκτώ |
| German | neunzehntausendneunhundertachtundneunzig |
| Hebrew | תשעה עשר אלף תשע מאות תשעים ושמונה |
| Hindi | उन्नीस हज़ार नौ सौ अट्ठानबे |
| Hungarian | tizenkilencezerkilencszázkilencvennyolc |
| Icelandic | nítján þúsund og níuhundrað og níutíu og átta |
| Indonesian | sembilan belas ribu sembilan ratus sembilan puluh delapan |
| Italian | diciannovemilanovecentonovantotto |
| Japanese | 一万九千九百九十八 |
| Korean | 만 구천구백구십팔 |
| Latvian | deviņpadsmit tūkstoši deviņsimt deviņdesmit astoņi |
| Lithuanian | devyniolika tūkstančių devyni šimtai devyniasdešimt aštuoni |
| Norwegian | nitten tusen ni hundre og nittiåtte |
| Persian | نوزده هزار و نهصد و نود و هشت |
| Polish | dziewiętnaście tysięcy dziewięćset dziewięćdziesiąt osiem |
| Portuguese | dezenove mil novecentos e noventa e oito |
| Romanian | nouăsprezece mii nouă sute nouăzeci şi opt |
| Russian | девятнадцать тысяч девятьсот девяносто восемь |
| Serbian | деветнаест хиљада деветсто деведесет и осам |
| Slovak | devätnásť tisíc deväťsto deväťdesiatosem |
| Slovene | devetnajst tisuću devetsto devetdeset osem |
| Spanish | diecinueve mil novecientos noventa y ocho |
| Swahili | elfu kumi na tisa, mia tisa na tisini na nane |
| Swedish | nittontusenniohundranittioåtta |
| Thai | หนึ่งหมื่นเก้าพันเก้าร้อยเก้าสิบแปด |
| Turkish | on dokuz bin dokuz yüz doksan sekiz |
| Ukrainian | девʼятнадцять тисяч девʼятсот девʼяносто вісім |
| Vietnamese | mười chín nghìn chín trăm chín mươi tám |
| Number 19998 reversed | 89991 | |
| Unicode Character | U+4E1E | 丞 |
| Unix Timestamp | Thu, 01 Jan 1970 05:33:18 +0000 | |