21009
Number 21009 is an odd five-digits composite number and natural number following 21008 and preceding 21010.
| Nominal | 21009 |
| Cardinal | twenty-one thousand nine |
Cardinal twenty-one thousand nine |
| Ordinal | 21,009th |
| Number of digits | 5 |
| Sum of digits | 12 |
| Product of digits | 0 |
| Number parity | Odd |
Calculation was done in 0.0000431538 seconds
| Prime factorization | 3 x 47 x 149 |
| Prime factors | 3, 47, 149 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 199 |
| Product of prime factors | 21009 |
Calculation was done in 0.0000109673 seconds
| List of proper divisors | 1, 3, 47, 141, 149, 447, 7003 |
| List of all dividers | 1, 3, 47, 141, 149, 447, 7003, 21009 |
| Number of divisors d(n) | 8 |
| Sum of all divisors σ(n) | 28800 |
| Aliquot sum | 7791 |
| 21009 is a deficient number , since it is larger than the sum of its proper divisors (7791). Its deficiency is 13218. |
Calculation was done in 0.0000290871 seconds
| Is 21009 a prime number? | No |
| Is 21009 a semiprime number? | No |
| Is 21009 a Chen prime number? | No |
| Is 21009 a Mersenne prime number? | No |
Calculation was done in 0.0511651039 seconds
| Is 21009 a Catalan number? | No |
| Is 21009 a Fibonacci number? | No |
| Is 21009 a Idoneal number? | No |
Calculation was done in 0.0000078678 seconds
| 21009 is a Happy number |
| 21009 is not a Humble number |
| 21009 is not a Münchhausen number |
| 21009 is not a Perfect number |
| 21009 is not a Perfect square |
| 21009 is not a Palindrome |
Calculation was done in 0.0020980835 seconds
| Base | System | Value |
|---|
| 2 | Binary | 1010010000100012 |
| 3 | Ternary | 10012110103 |
| 4 | Quaternary | 110201014 |
| 5 | Quinary | 11330145 |
| 6 | Senary | 2411336 |
| 7 | Septenary | 1151527 |
| 8 | Octal | 510218 |
| 9 | Nonary | 317339 |
| 10 | Decimal | 21009 |
| 12 | Duodecimal | 101a912 |
| 16 | Hexadecimal | 521116 |
| 20 | Vigesimal | 2ca920 |
| 36 | Base36 | g7l36 |
| 60 | Sexagesimal | 5o960 |
Calculation was done in 0.0000219345 seconds
| Square of 21009 (n2) | 441378081 |
| Cube of 21009 (n3) | 9272912103729 |
| Square root of 21009 | 144.94481708568 |
| Natural Logarithm (ln) of 21009 | 9.9527061963236 |
| Decimal Logarithm (log) of 21009 | 4.3224053810677 |
Calculation was done in 0.0000061989 seconds
| Sine of 21009 | -0.9207215074389 |
| Cosecant of 21009 | -1.0861047471147 |
| Cosine of 21009 | -0.39022032973622 |
| Secant of 21009 | -2.5626547972936 |
| Tangent of 21009 | 2.3594913880097 |
| Cotangent of 21009 | 0.42382015254717 |
Calculation was done in 0.0000169277 seconds
Is 21009 an Even Number?
No
Is 21009 an Odd Number?
Yes, the number 21009 is an odd number.
Total number of all odd numbers from 1 to 21009 is
10505Sum of all the odd numbers from 1 to 21009 are 110355025
The sum of all odd numbers is a perfect square: 110355025 = 10505
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.Previous odd number is
21007
Calculation was done in 0.0000069141 seconds
| The spelling of 21009 in words is "twenty-one thousand nine", meaning that: |
| 21009 is not an aban number (as it contains the letter a) |
| 21009 is not an eban number (as it contains the letter e) |
| 21009 is not an iban number (as it contains the letter i) |
| 21009 is not an oban number (as it contains the letter o) |
| 21009 is not a tban number (as it contains the letter t) |
| 21009 is not an uban number (as it contains the letter u) |
Calculation was done in 0.0000028610 seconds
| Bengali numerals | ২১০০৯ |
| Eastern Arabic numerals | ٢١٬٠٠٩ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓆼𓐂 |
| Khmer numerals | ២១០០៩ |
| Japanese numerals | 二万千九 |
| Roman numerals | n/a |
| Thai numerals | ๒๑๐๐๙ |
Calculation was done in 0.0001649857 seconds
| Arabic | واحد و عشرون ألف و تسعة |
| Croatian | dvadeset i jedna tisuća devet |
| Czech | dvacet jedna tisíc devět |
| Danish | en og tyve tusinde og ni |
| Dutch | éénentwintigduizend en negen |
| Estonian | akpe blaeve vɔ ɖekɛ kple asieke |
| Faroese | tjúgoeitt tusin og níggju |
| Filipino | dalawáng pû’t isáng libó’t siyám |
| Finnish | kaksikymmentäyksituhattayhdeksän |
| French | vingt et un mille neuf |
| Greek | είκοσι μία χίλιάδες εννέα |
| German | einundzwanzigtausendneun |
| Hebrew | עשרים ואחד אלף ותשע |
| Hindi | इक्कीस हज़ार नौ |
| Hungarian | huszonegyezerkilenc |
| Icelandic | tuttugu og eitt þúsund og níu |
| Indonesian | dua puluh satu ribu sembilan |
| Italian | ventunomilanove |
| Japanese | 二万千九 |
| Korean | 이만 천구 |
| Latvian | divdesmit viens tūkstoši deviņi |
| Lithuanian | dvidešimt vienas tūkstantis devyni |
| Norwegian | tjueett tusen og ni |
| Persian | بیست و یک هزار و نه |
| Polish | dwadzieścia jeden tysięcy dziewięć |
| Portuguese | vinte e um mil e nove |
| Romanian | douăzeci şi una mii nouă |
| Russian | двадцать одна тысяча девять |
| Serbian | двадесет и једна хиљада девет |
| Slovak | dvadsaťjedna tisíc deväť |
| Slovene | dvaset ena tisuću devet |
| Spanish | veintiún mil nueve |
| Swahili | elfu ishirini na moja, tisa |
| Swedish | tjugoentusennio |
| Thai | สองหมื่นหนึ่งพันเก้า |
| Turkish | yirmi bir bin dokuz |
| Ukrainian | двадцять одна тисяча девʼять |
| Vietnamese | hai mươi mốt nghìn không trăm lẻ chín |
Calculation was done in 0.0219202042 seconds
| Number 21009 reversed | 90012 |
| Unicode Character | U+5211 | 刑 |
| Unix Timestamp | Thu, 01 Jan 1970 05:50:09 +0000 |
Calculation was done in 0.0000331402 seconds
This page was generated in 0.08 seconds.