We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from. For more information, please review our cookie policy and privacy policy.
By choosing I Accept, you consent to our use of cookies and other tracking technologies.

1

Number 1 (one) is an odd digit prime number and natural number following 0 and preceding 2.

Properties of the number 1

Nominal1
Cardinalone
Ordinal1st
Number of digits1
Sum of digits1
Product of digits1
Number parityOdd
Calculation was done in 0.0000329018 seconds

Prime Factorization of 1

Prime factorization
Prime factors
Number of distinct prime factors ω(n)0
Total number of prime factors Ω(n)0
Sum of prime factors0
Product of prime factors1
Calculation was done in 0.0000040531 seconds

Divisors of 1

List of proper divisors 1
List of all dividers1, 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

Prime numbers

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 0.0000071526 seconds

Sequences

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 0.0000028610 seconds

Number theory

Number theory is a branch of pure mathematics devoted primarily to the study of the integers and integer-valued functions.
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 0.0005071163 seconds

Numeric Bases of 1

In mathematics, a base or radix of a numeral system is the number of unique digits, including zero, used to represent numbers in that system.
BaseSystemValue
2Binary12
3Ternary13
4Quaternary14
5Quinary15
6Senary16
7Septenary17
8Octal18
9Nonary19
10Decimal1
12Duodecimal112
16Hexadecimal116
20Vigesimal120
36Base36136
60Sexagesimal160
Calculation was done in 0.0000150204 seconds

Mathematical operations

Mathematical operations are actions that are performed on numbers or mathematical expressions to find a numerical result.
Square of 1 (n2)1
Cube of 1 (n3)1
Square root of 11
Natural Logarithm (ln) of 10
Decimal Logarithm (log) of 10
Calculation was done in 0.0000040531 seconds

Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 10.8414709848079
Cosecant of 11.1883951057781
Cosine of 10.54030230586814
Secant of 11.8508157176809
Tangent of 11.5574077246549
Cotangent of 10.64209261593433
Calculation was done in 0.0000059605 seconds

Number parity

Parity is the property of an integer of whether it is even or odd.

Is 1 an Even Number?

No

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

Ban number

In recreational mathematics, a ban number is a number that does not contain a particular letter when spelled out in English; in other words, the letter is "banned".
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 0.0000030994 seconds

Numeral systems

How to write 1 in other number systems?
Bengali numerals
Eastern Arabic numerals١
Hieroglyphs numeralsused in Ancient Egypt𓏺
Khmer numerals
Japanese numerals
Roman numeralsI
Thai numerals
Calculation was done in 0.0000729561 seconds

Translation

How do you say 1 in 38 different languages?
Arabicواحد
Croatianjedan
Czechjeden
Danish en
Dutchéén
Estonianɖeka
Faroeseein
Filipinoisá
Finnishyksi
Frenchun
Greekένα
Germaneins
Hebrewאחת
Hindiएक
Hungarianegy
Icelandiceinn
Indonesiansatu
Italianuno
Japanese
Korean
Latvianviens
Lithuanianvienas
Norwegianén
Persianیک
Polishjeden
Portugueseum
Romanianunu
Russianодин
Serbianједан
Slovakjeden
Sloveneena
Spanish uno
Swahilimoja
Swedishen
Thaiหนึ่ง
Turkishbir
Ukrainianодин
Vietnamesemột
Calculation was done in 0.0138411522 seconds

Miscellaneous

Number 1 reversed1
ASCII Code1
Unicode CharacterU+0001
Unix TimestampThu, 01 Jan 1970 00:00:01 +0000
Calculation was done in 0.0000178814 seconds
This page was generated in 0.02 seconds.