1
Number 1 (one) is an odd digit prime number and natural number following 0 and preceding 2.
| Nominal | 1 |
| Cardinal | one |
| Ordinal | 1st |
| Number of digits | 1 |
| Sum of digits | 1 |
| Product of digits | 1 |
| Number parity | Odd |
Calculation was done in 0.0000309944 seconds
| Prime factorization | |
| Prime factors | |
| Number of distinct prime factors ω(n) | 0 |
| Total number of prime factors Ω(n) | 0 |
| Sum of prime factors | 0 |
| Product of prime factors | 1 |
Calculation was done in 0.0000050068 seconds
| List of proper divisors | 1 |
| List of all dividers | 1, 1 |
| Number of divisors d(n) | 2 |
| Sum of all divisors σ(n) | 2 |
| Aliquot sum | 1 |
| 1 is a perfect number, since it is equal to the sum of its proper divisors. |
Calculation was done in 0.0000209808 seconds
| Is 1 a prime number? | Yes |
| Is 1 a semiprime number? | No |
| Is 1 a Chen prime number? | No |
| Is 1 a Mersenne prime number? | No |
Calculation was done in 0.0000081062 seconds
| Is 1 a Catalan number? | Yes: C0, C1 |
| Is 1 a Fibonacci number? | Yes |
| Is 1 a Idoneal number? | Yes: I0 |
Calculation was done in 0.0000030994 seconds
| 1 is a Happy number |
| 1 is a Humble number |
| 1 is a Münchhausen number |
| 1 is not a Perfect number |
| 1 is a Perfect square |
| 1 is a Palindrome |
Calculation was done in 0.0005249977 seconds
| Base | System | Value |
|---|
| 2 | Binary | 12 |
| 3 | Ternary | 13 |
| 4 | Quaternary | 14 |
| 5 | Quinary | 15 |
| 6 | Senary | 16 |
| 7 | Septenary | 17 |
| 8 | Octal | 18 |
| 9 | Nonary | 19 |
| 10 | Decimal | 1 |
| 12 | Duodecimal | 112 |
| 16 | Hexadecimal | 116 |
| 20 | Vigesimal | 120 |
| 36 | Base36 | 136 |
| 60 | Sexagesimal | 160 |
Calculation was done in 0.0000128746 seconds
| Square of 1 (n2) | 1 |
| Cube of 1 (n3) | 1 |
| Square root of 1 | 1 |
| Natural Logarithm (ln) of 1 | 0 |
| Decimal Logarithm (log) of 1 | 0 |
Calculation was done in 0.0000030994 seconds
| Sine of 1 | 0.8414709848079 |
| Cosecant of 1 | 1.1883951057781 |
| Cosine of 1 | 0.54030230586814 |
| Secant of 1 | 1.8508157176809 |
| Tangent of 1 | 1.5574077246549 |
| Cotangent of 1 | 0.64209261593433 |
Calculation was done in 0.0000059605 seconds
Is 1 an Odd Number?
Yes, the number 1 is an odd number.
Total number of all odd numbers from 1 to 1 is 1
Sum of all the odd numbers from 1 to 1 are 1
The sum of all odd numbers is a perfect square: 1 = 1
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 0.0000090599 seconds
| The spelling of 1 in words is "one", meaning that: |
| 1 is an aban number (a number without the letter a) |
| 1 is not an eban number (as it contains the letter e) |
| 1 is an iban number (a number without the letter i) |
| 1 is not an oban number (as it contains the letter o) |
| 1 is a tban number (a number without the letter t) |
| 1 is an uban number (a number without the letter u) |
Calculation was done in 0.0000028610 seconds
| Bengali numerals | ১ |
| Eastern Arabic numerals | ١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓏺 |
| Khmer numerals | ១ |
| Japanese numerals | 一 |
| Roman numerals | I |
| Thai numerals | ๑ |
Calculation was done in 0.0000581741 seconds
| Arabic | واحد |
| Croatian | jedan |
| Czech | jeden |
| Danish | en |
| Dutch | één |
| Estonian | ɖeka |
| Faroese | ein |
| Filipino | isá |
| Finnish | yksi |
| French | un |
| Greek | ένα |
| German | eins |
| Hebrew | אחת |
| Hindi | एक |
| Hungarian | egy |
| Icelandic | einn |
| Indonesian | satu |
| Italian | uno |
| Japanese | 一 |
| Korean | 일 |
| Latvian | viens |
| Lithuanian | vienas |
| Norwegian | én |
| Persian | یک |
| Polish | jeden |
| Portuguese | um |
| Romanian | unu |
| Russian | один |
| Serbian | један |
| Slovak | jeden |
| Slovene | ena |
| Spanish | uno |
| Swahili | moja |
| Swedish | en |
| Thai | หนึ่ง |
| Turkish | bir |
| Ukrainian | один |
| Vietnamese | một |
Calculation was done in 0.0138728619 seconds
| Number 1 reversed | 1 |
| ASCII Code | 1 | |
| Unicode Character | U+0001 | |
| Unix Timestamp | Thu, 01 Jan 1970 00:00:01 +0000 |
Calculation was done in 0.0000240803 seconds
This page was generated in 0.02 seconds.