21021
Number 21021 is an odd five-digits composite number and natural number following 21020 and preceding 21022.
| Nominal | 21021 |
| Cardinal | twenty-one thousand twenty-one |
Cardinal twenty-one thousand twenty-one |
| Ordinal | 21,021st |
| Number of digits | 5 |
| Sum of digits | 6 |
| Product of digits | 0 |
| Number parity | Odd |
Calculation was done in 0.0000450611 seconds
| Prime factorization | 3 x 7 x 7 x 11 x 13 |
| Prime factorization in exponent form | 3 x 72 x 11 x 13 |
| Prime factors | 3, 7, 11, 13 |
| Number of distinct prime factors ω(n) | 4 |
| Total number of prime factors Ω(n) | 5 |
| Sum of prime factors | 34 |
| Product of prime factors | 3003 |
Calculation was done in 0.0000200272 seconds
| List of proper divisors | 1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 231, 273, 429, 539, 637, 1001, 1617, 1911, 3003, 7007 |
| List of all dividers | 1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 231, 273, 429, 539, 637, 1001, 1617, 1911, 3003, 7007, 21021 |
| Number of divisors d(n) | 24 |
| Sum of all divisors σ(n) | 38304 |
| Aliquot sum | 17283 |
| 21021 is a deficient number , since it is larger than the sum of its proper divisors (17283). Its deficiency is 3738. |
Calculation was done in 0.0000269413 seconds
| Is 21021 a prime number? | No |
| Is 21021 a semiprime number? | No |
| Is 21021 a Chen prime number? | No |
| Is 21021 a Mersenne prime number? | No |
Calculation was done in 0.0221130848 seconds
| Is 21021 a Catalan number? | No |
| Is 21021 a Fibonacci number? | No |
| Is 21021 a Idoneal number? | No |
Calculation was done in 0.0000050068 seconds
| 21021 is a Happy number |
| 21021 is not a Humble number |
| 21021 is not a Münchhausen number |
| 21021 is not a Perfect number |
| 21021 is not a Perfect square |
| 21021 is not a Palindrome |
Calculation was done in 0.0009388924 seconds
| Base | System | Value |
|---|
| 2 | Binary | 1010010000111012 |
| 3 | Ternary | 10012111203 |
| 4 | Quaternary | 110201314 |
| 5 | Quinary | 11330415 |
| 6 | Senary | 2411536 |
| 7 | Septenary | 1152007 |
| 8 | Octal | 510358 |
| 9 | Nonary | 317469 |
| 10 | Decimal | 21021 |
| 12 | Duodecimal | 101b912 |
| 16 | Hexadecimal | 521d16 |
| 20 | Vigesimal | 2cb120 |
| 36 | Base36 | g7x36 |
| 60 | Sexagesimal | 5oL60 |
Calculation was done in 0.0000181198 seconds
| Square of 21021 (n2) | 441882441 |
| Cube of 21021 (n3) | 9288810792261 |
| Square root of 21021 | 144.98620624046 |
| Natural Logarithm (ln) of 21021 | 9.9532772170386 |
| Decimal Logarithm (log) of 21021 | 4.3226533722132 |
Calculation was done in 0.0000090599 seconds
| Sine of 21021 | -0.56757282795281 |
| Cosecant of 21021 | -1.7618884321981 |
| Cosine of 21021 | -0.82332319593806 |
| Secant of 21021 | -1.2145898535758 |
| Tangent of 21021 | 0.68936819799683 |
| Cotangent of 21021 | 1.4506036148836 |
Calculation was done in 0.0000059605 seconds
Is 21021 an Even Number?
No
Is 21021 an Odd Number?
Yes, the number 21021 is an odd number.
Total number of all odd numbers from 1 to 21021 is
10511Sum of all the odd numbers from 1 to 21021 are 110481121
The sum of all odd numbers is a perfect square: 110481121 = 10511
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
21019
Calculation was done in 0.0000050068 seconds
| The spelling of 21021 in words is "twenty-one thousand twenty-one", meaning that: |
| 21021 is not an aban number (as it contains the letter a) |
| 21021 is not an eban number (as it contains the letter e) |
| 21021 is an iban number (a number without the letter i) |
| 21021 is not an oban number (as it contains the letter o) |
| 21021 is not a tban number (as it contains the letter t) |
| 21021 is not an uban number (as it contains the letter u) |
Calculation was done in 0.0000019073 seconds
| Bengali numerals | ২১০২১ |
| Eastern Arabic numerals | ٢١٬٠٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓆼𓎇𓏺 |
| Khmer numerals | ២១០២១ |
| Japanese numerals | 二万千二十一 |
| Roman numerals | n/a |
| Thai numerals | ๒๑๐๒๑ |
Calculation was done in 0.0000801086 seconds
| Arabic | واحد و عشرون ألف و واحد و عشرون |
| Croatian | dvadeset i jedna tisuća dvadeset i jedan |
| Czech | dvacet jedna tisíc dvacet jeden |
| Danish | en og tyve tusinde og en og tyve |
| Dutch | éénentwintigduizend éénentwintig |
| Estonian | akpe blaeve vɔ ɖekɛ kple blaeve vɔ ɖekɛ |
| Faroese | tjúgoeitt tusin og tjúgoein |
| Filipino | dalawáng pû’t isáng libó’t dalawáng pû’t isá |
| Finnish | kaksikymmentäyksituhattakaksikymmentäyksi |
| French | vingt et un mille vingt et un |
| Greek | είκοσι μία χίλιάδες είκοσι ένα |
| German | einundzwanzigtausendeinundzwanzig |
| Hebrew | עשרים ואחד אלף עשרים ואחת |
| Hindi | इक्कीस हज़ार इक्कीस |
| Hungarian | huszonegyezerhuszonegy |
| Icelandic | tuttugu og eitt þúsund og tuttugu og einn |
| Indonesian | dua puluh satu ribu dua puluh satu |
| Italian | ventunomilaventuno |
| Japanese | 二万千二十一 |
| Korean | 이만 천이십일 |
| Latvian | divdesmit viens tūkstoši divdesmit viens |
| Lithuanian | dvidešimt vienas tūkstantis dvidešimt vienas |
| Norwegian | tjueett tusen og tjueén |
| Persian | بیست و یک هزار و بیست و یک |
| Polish | dwadzieścia jeden tysięcy dwadzieścia jeden |
| Portuguese | vinte e um mil e vinte e um |
| Romanian | douăzeci şi una mii douăzeci şi unu |
| Russian | двадцать одна тысяча двадцать один |
| Serbian | двадесет и једна хиљада двадесет и један |
| Slovak | dvadsaťjedna tisíc dvadsaťjeden |
| Slovene | dvaset ena tisuću dvaset ena |
| Spanish | veintiún mil veintiuno |
| Swahili | elfu ishirini na moja, ishirini na moja |
| Swedish | tjugoentusentjugoen |
| Thai | สองหมื่นหนึ่งพันยี่สิบเอ็ด |
| Turkish | yirmi bir bin yirmi bir |
| Ukrainian | двадцять одна тисяча двадцять один |
| Vietnamese | hai mươi mốt nghìn không trăm hai mươi mốt |
Calculation was done in 0.0139119625 seconds
| Number 21021 reversed | 12012 |
| Unicode Character | U+521D | 初 |
| Unix Timestamp | Thu, 01 Jan 1970 05:50:21 +0000 |
Calculation was done in 0.0000188351 seconds
This page was generated in 0.04 seconds.