23
Number 23 (twenty-three) is an odd two-digits prime number and natural number following 22 and preceding 24.
| Nominal | 23 |
| Cardinal | twenty-three |
| Ordinal | 23rd |
| Number of digits | 2 |
| Sum of digits | 5 |
| Product of digits | 6 |
| Number parity | Odd |
Calculation was done in 0.0000338554 seconds
| Prime factorization | 23 |
| Prime factors | 23 |
| Number of distinct prime factors ω(n) | 1 |
| Total number of prime factors Ω(n) | 1 |
| Sum of prime factors | 23 |
| Product of prime factors | 23 |
Calculation was done in 0.0000081062 seconds
| List of proper divisors | 1 |
| List of all dividers | 1, 23 |
| Number of divisors d(n) | 2 |
| Sum of all divisors σ(n) | 24 |
| Aliquot sum | 1 |
| 23 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 22. |
Calculation was done in 0.0000240803 seconds
| Is 23 a prime number? | Yes |
| Is 23 a semiprime number? | No |
| Is 23 a Chen prime number? | Yes |
| Is 23 a Mersenne prime number? | No |
Calculation was done in 0.0000100136 seconds
| Is 23 a Catalan number? | No |
| Is 23 a Fibonacci number? | No |
| Is 23 a Idoneal number? | No |
Calculation was done in 0.0000040531 seconds
| 23 is a Happy number |
| 23 is not a Humble number |
| 23 is not a Münchhausen number |
| 23 is not a Perfect number |
| 23 is not a Perfect square |
| 23 is not a Palindrome |
Calculation was done in 0.0015528202 seconds
| Base | System | Value |
|---|
| 2 | Binary | 101112 |
| 3 | Ternary | 2123 |
| 4 | Quaternary | 1134 |
| 5 | Quinary | 435 |
| 6 | Senary | 356 |
| 7 | Septenary | 327 |
| 8 | Octal | 278 |
| 9 | Nonary | 259 |
| 10 | Decimal | 23 |
| 12 | Duodecimal | 1b12 |
| 16 | Hexadecimal | 1716 |
| 20 | Vigesimal | 1320 |
| 36 | Base36 | n36 |
| 60 | Sexagesimal | N60 |
Calculation was done in 0.0000169277 seconds
| Square of 23 (n2) | 529 |
| Cube of 23 (n3) | 12167 |
| Square root of 23 | 4.7958315233127 |
| Natural Logarithm (ln) of 23 | 3.1354942159291 |
| Decimal Logarithm (log) of 23 | 1.3617278360176 |
Calculation was done in 0.0000050068 seconds
| Sine of 23 | -0.84622040417517 |
| Cosecant of 23 | -1.1817252279265 |
| Cosine of 23 | -0.5328330203334 |
| Secant of 23 | -1.8767605644528 |
| Tangent of 23 | 1.5881530833913 |
| Cotangent of 23 | 0.62966222240028 |
Calculation was done in 0.0000109673 seconds
Is 23 an Odd Number?
Yes, the number 23 is an odd number.
Total number of all odd numbers from 1 to 23 is
12Sum of all the odd numbers from 1 to 23 are
144The sum of all odd numbers is a perfect square: 144 = 12
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
21
Calculation was done in 0.0000061989 seconds
| The spelling of 23 in words is "twenty-three", meaning that: |
| 23 is an aban number (a number without the letter a) |
| 23 is not an eban number (as it contains the letter e) |
| 23 is an iban number (a number without the letter i) |
| 23 is an oban number (a number without the letter o) |
| 23 is not a tban number (as it contains the letter t) |
| 23 is an uban number (a number without the letter u) |
Calculation was done in 0.0000028610 seconds
| Bengali numerals | ২৩ |
| Eastern Arabic numerals | ٢٣ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓎇𓏼 |
| Khmer numerals | ២៣ |
| Japanese numerals | 二十三 |
| Roman numerals | XXIII |
| Thai numerals | ๒๓ |
Calculation was done in 0.0000650883 seconds
| Arabic | ثلاثة و عشرون |
| Croatian | dvadeset i tri |
| Czech | dvacet tři |
| Danish | tre og tyve |
| Dutch | drieentwintig |
| Estonian | blaeve vɔ etɔ̃ |
| Faroese | tjúgotríggir |
| Filipino | dalawáng pû’t tatló |
| Finnish | kaksikymmentäkolme |
| French | vingt-trois |
| Greek | είκοσι τρία |
| German | dreiundzwanzig |
| Hebrew | עשרים ושלוש |
| Hindi | तेईस |
| Hungarian | huszonhárom |
| Icelandic | tuttugu og þrír |
| Indonesian | dua puluh tiga |
| Italian | ventitre |
| Japanese | 二十三 |
| Korean | 이십삼 |
| Latvian | divdesmit trīs |
| Lithuanian | dvidešimt trys |
| Norwegian | tjuetre |
| Persian | بیست و سه |
| Polish | dwadzieścia trzy |
| Portuguese | vinte e três |
| Romanian | douăzeci şi trei |
| Russian | двадцать три |
| Serbian | двадесет и три |
| Slovak | dvadsaťtri |
| Slovene | dvaset tri |
| Spanish | veintitres |
| Swahili | ishirini na tatu |
| Swedish | tjugotre |
| Thai | ยี่สิบสาม |
| Turkish | yirmi üç |
| Ukrainian | двадцять три |
| Vietnamese | hai mươi ba |
Calculation was done in 0.0140171051 seconds
| Number 23 reversed | 32 |
| ASCII Code | 23 | |
| Unicode Character | U+0017 | |
| Unix Timestamp | Thu, 01 Jan 1970 00:00:23 +0000 |
Calculation was done in 0.0000400543 seconds
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