9
Number 9 (nine) is an odd digit composite number and natural number following 8 and preceding 10.
| Nominal | 9 |
| Cardinal | nine |
| Ordinal | 9th |
| Number of digits | 1 |
| Sum of digits | 9 |
| Product of digits | 9 |
| Number parity | Odd |
Calculation was done in 0.0000309944 seconds
| Prime factorization | 3 x 3 |
| Prime factorization in exponent form | 32 |
| Prime factors | 3 |
| Number of distinct prime factors ω(n) | 1 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 3 |
| Product of prime factors | 3 |
Calculation was done in 0.0000059605 seconds
| List of proper divisors | 1, 3 |
| List of all dividers | 1, 3, 9 |
| Number of divisors d(n) | 3 |
| Sum of all divisors σ(n) | 13 |
| Aliquot sum | 4 |
| 9 is a deficient number , since it is larger than the sum of its proper divisors (4). Its deficiency is 5. |
Calculation was done in 0.0000200272 seconds
| Is 9 a prime number? | No |
| Is 9 a semiprime number? | Yes |
| Is 9 a Chen prime number? | No |
| Is 9 a Mersenne prime number? | No |
Calculation was done in 0.0000088215 seconds
| Is 9 a Catalan number? | No |
| Is 9 a Fibonacci number? | No |
| Is 9 a Idoneal number? | Yes: I8 |
Calculation was done in 0.0000040531 seconds
| 9 is not a Happy number |
| 9 is a Humble number |
| 9 is not a Münchhausen number |
| 9 is not a Perfect number |
| 9 is a Perfect square |
| 9 is a Palindrome |
Calculation was done in 0.0059399605 seconds
| Base | System | Value |
|---|
| 2 | Binary | 10012 |
| 3 | Ternary | 1003 |
| 4 | Quaternary | 214 |
| 5 | Quinary | 145 |
| 6 | Senary | 136 |
| 7 | Septenary | 127 |
| 8 | Octal | 118 |
| 9 | Nonary | 109 |
| 10 | Decimal | 9 |
| 12 | Duodecimal | 912 |
| 16 | Hexadecimal | 916 |
| 20 | Vigesimal | 920 |
| 36 | Base36 | 936 |
| 60 | Sexagesimal | 960 |
Calculation was done in 0.0000178814 seconds
| Square of 9 (n2) | 81 |
| Cube of 9 (n3) | 729 |
| Square root of 9 | 3 |
| Natural Logarithm (ln) of 9 | 2.1972245773362 |
| Decimal Logarithm (log) of 9 | 0.95424250943932 |
Calculation was done in 0.0000059605 seconds
| Sine of 9 | 0.41211848524176 |
| Cosecant of 9 | 2.426486643552 |
| Cosine of 9 | -0.91113026188468 |
| Secant of 9 | -1.097537906305 |
| Tangent of 9 | -0.45231565944181 |
| Cotangent of 9 | -2.2108454109992 |
Calculation was done in 0.0000140667 seconds
Is 9 an Odd Number?
Yes, the number 9 is an odd number.
Total number of all odd numbers from 1 to 9 is
5Sum of all the odd numbers from 1 to 9 are
25The sum of all odd numbers is a perfect square: 25 = 5
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.
Calculation was done in 0.0000059605 seconds
| The spelling of 9 in words is "nine", meaning that: |
| 9 is an aban number (a number without the letter a) |
| 9 is not an eban number (as it contains the letter e) |
| 9 is not an iban number (as it contains the letter i) |
| 9 is an oban number (a number without the letter o) |
| 9 is a tban number (a number without the letter t) |
| 9 is an uban number (a number without the letter u) |
Calculation was done in 0.0000030994 seconds
| Bengali numerals | ৯ |
| Eastern Arabic numerals | ٩ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓐂 |
| Khmer numerals | ៩ |
| Japanese numerals | 九 |
| Roman numerals | IX |
| Thai numerals | ๙ |
Calculation was done in 0.0000920296 seconds
| Arabic | تسعة |
| Croatian | devet |
| Czech | devět |
| Danish | ni |
| Dutch | negen |
| Estonian | asieke |
| Faroese | níggju |
| Filipino | siyám |
| Finnish | yhdeksän |
| French | neuf |
| Greek | εννέα |
| German | neun |
| Hebrew | תשע |
| Hindi | नौ |
| Hungarian | kilenc |
| Icelandic | níu |
| Indonesian | sembilan |
| Italian | nove |
| Japanese | 九 |
| Korean | 구 |
| Latvian | deviņi |
| Lithuanian | devyni |
| Norwegian | ni |
| Persian | نه |
| Polish | dziewięć |
| Portuguese | nove |
| Romanian | nouă |
| Russian | девять |
| Serbian | девет |
| Slovak | deväť |
| Slovene | devet |
| Spanish | nueve |
| Swahili | tisa |
| Swedish | nio |
| Thai | เก้า |
| Turkish | dokuz |
| Ukrainian | девʼять |
| Vietnamese | chín |
Calculation was done in 0.0142009258 seconds
| Number 9 reversed | 9 |
| ASCII Code | 9 | |
| Unicode Character | U+0009 | |
| Unix Timestamp | Thu, 01 Jan 1970 00:00:09 +0000 |
Calculation was done in 0.0000281334 seconds
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