1 (number)

1 is an odd 1-digits composite number following 0 and preceding 2. In scientific notation, it is written as 1. The sum of its digits is 1. It has a total of 0 prime factors and 1 positive divisors. There are 1 positive integers (up to 1) that are relatively prime to 1.

Interesting facts

Basic properties

Name

Name one

Notation

Scientific notation 1
Engineering notation 1

Prime Factorization of 1

Prime Factorization

Composite number
ω Distinct Factors 0
Total number of distinct prime factors
Ω Total Factors 0
Total number of prime factors
rad Radical 1
Product of the distinct prime numbers

The prime factorization of 1 is . Since it has a total of 0 prime factors.

Most popular turbo-numbers

Basic calculations (n = 1)

Multiplication

n×y
n×2 2
n×3 3
n×4 4
n×5 5

Division

n÷y
n÷2 0.5
n÷3 0.33333333333333
n÷3 0.25
n÷5 0.2

Exponentiation

ny
n2 1
n3 1
n4 1
n5 1

Nth Root

y√n
2√n 1
3√n 1
4√n 1
5√n 1

Divisors of 1

1

1 divisors

τ Total Divisors 1
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum 0
Sum of the proper positive divisors of n
A Arithmetic Mean 1
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 1
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1 can be divided by 1 positive divisors. The sum of these divisors (counting 1) is 1, the average is 1.

Base conversion 1

Base System Value
2 Binary 1
3 Ternary 1
4 Quaternary 1
5 Quinary 1
6 Senary 1
8 Octal 1
10 Decimal 1
12 Duodecimal 1
16 Hexadecimal 1
20 Vigesimal 1
36 Base36 1

Cryptographic Hash Functions

md5 c4ca4238a0b923820dcc509a6f75849b
sha1 356a192b7913b04c54574d18c28d46e6395428ab
sha256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
sha512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
ripemd-160 c47907abd2a80492ca9388b05c0e382518ff3960

1 as geometric shapes

Circle

Radius = n
Diameter 2
Circumference 6.2831853071796
Area 3.1415926535898

Sphere

Radius = n
Volume 4.1887902047864
Surface area 12.566370614359
Circumference 6.2831853071796

Square

Length = n
Perimeter 4
Area 1
Diagonal 1.4142135623731

Cube

Length = n
Surface area 6
Volume 1
Space diagonal 1.7320508075689

Equilateral Triangle

Length = n
Perimeter 3
Area 0.43301270189222
Altitude 0.86602540378444

Triangular Pyramid

Length = n
Surface area 0.43301270189222
Volume 0.11785113019776
Height 0.47140452079103