1081 (number)

1081 is an odd 4-digits composite number following 1080 and preceding 1082. In scientific notation, it is written as 1.081 × 10^3. The sum of its digits is 10. It has a total of 2 prime factors and 4 positive divisors. There are 1012 positive integers (up to 1081) that are relatively prime to 1081.

Interesting facts

Basic properties

Name

Name one thousand eighty-one

Notation

Scientific notation 1.081 × 10^3
Engineering notation 1.081 × 10^3

Prime Factorization of 1081

Prime Factorization 23 × 47

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1081
Product of the distinct prime numbers

The prime factorization of 1081 is 23 × 47. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 1081)

Multiplication

n×y
n×2 2162
n×3 3243
n×4 4324
n×5 5405

Division

n÷y
n÷2 540.5
n÷3 360.33333333333
n÷3 270.25
n÷5 216.2

Exponentiation

ny
n2 1168561
n3 1263214441
n4 1365534810721
n5 1476143130389401

Nth Root

y√n
2√n 32.878564445547
3√n 10.263021325334
4√n 5.7339832965877
5√n 4.0435716109144

Divisors of 1081

1, 23, 47, 1081

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1080
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1081 can be divided by 4 positive divisors. The sum of these divisors (counting 1081) is 1, the average is 0.25.

Base conversion 1081

Base System Value
2 Binary 10000111001
3 Ternary 1111001
4 Quaternary 100321
5 Quinary 13311
6 Senary 5001
8 Octal 2071
10 Decimal 1081
12 Duodecimal 761
16 Hexadecimal 439
20 Vigesimal 2e1
36 Base36 u1

Cryptographic Hash Functions

md5 36a16a2505369e0c922b6ea7a23a56d2
sha1 a874f83e95a94266c7d2856a7cbb42ee5af2e01a
sha256 e18037f42fd038fa9b51c6234fa4f332fa681c14653c9852fdf9a0a501bbac24
sha512 1de7c051f3cfc55fa2ba09249715196822e5954da8b278a183caa618ca37deb2c5aee03f05f97f00e3e582583c8abc4393670c8237283f083039dafb11becb9f
ripemd-160 ad6a295b4c0ab6ad956e95be21c8d9d16a595905

1081 as geometric shapes

Circle

Radius = n
Diameter 2162
Circumference 6792.1233170611
Area 3671142.6528715

Sphere

Radius = n
Volume 5291340277.0055
Surface area 14684570.611486
Circumference 6792.1233170611

Square

Length = n
Perimeter 4324
Area 1168561
Diagonal 1528.7648609253

Cube

Length = n
Surface area 7011366
Volume 1263214441
Space diagonal 1872.346922982

Equilateral Triangle

Length = n
Perimeter 3243
Area 506001.75593587
Altitude 936.17346149098

Triangular Pyramid

Length = n
Surface area 506001.75593587
Volume 148871249.55398
Height 509.58828697511