3781 (number)

3781 is an odd 4-digits composite number following 3780 and preceding 3782. In scientific notation, it is written as 3.781 × 10^3. The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors. There are 3564 positive integers (up to 3781) that are relatively prime to 3781.

Interesting facts

Basic properties

Name

Name three thousand seven hundred eighty-one

Notation

Scientific notation 3.781 × 10^3
Engineering notation 3.781 × 10^3

Prime Factorization of 3781

Prime Factorization 19 × 199

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 3781
Product of the distinct prime numbers

The prime factorization of 3781 is 19 × 199. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 3781)

Multiplication

n×y
n×2 7562
n×3 11343
n×4 15124
n×5 18905

Division

n÷y
n÷2 1890.5
n÷3 1260.3333333333
n÷3 945.25
n÷5 756.2

Exponentiation

ny
n2 14295961
n3 54053028541
n4 204374500913521
n5 772739987954022901

Nth Root

y√n
2√n 61.489836558573
3√n 15.578855860124
4√n 7.8415455465471
5√n 5.1942319044874

Divisors of 3781

1, 19, 199, 3781

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 -3780
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 3781 can be divided by 4 positive divisors. The sum of these divisors (counting 3781) is 1, the average is 0.25.

Base conversion 3781

Base System Value
2 Binary 111011000101
3 Ternary 12012001
4 Quaternary 323011
5 Quinary 110111
6 Senary 25301
8 Octal 7305
10 Decimal 3781
12 Duodecimal 2231
16 Hexadecimal ec5
20 Vigesimal 991
36 Base36 2x1

Cryptographic Hash Functions

md5 9fc664916bce863561527f06a96f5ff3
sha1 5a229d43a6d3f780cf00a6d6065aebbf8bda2125
sha256 2f8ef9d7bbd2a6126f69e4a3728b19ae77f3d14327e33dd7b003be1d8c2df895
sha512 801ba326abe81597aa834eadbaf2560dcd29631be8728470559648e869d77da2495e2208cac77e852394edcc2bf4e2e9f3b8d05331ec35e443c76734888a292c
ripemd-160 bc0f06c1b13bcfdef4a4d189b89d6baab0c694c7

3781 as geometric shapes

Circle

Radius = n
Diameter 7562
Circumference 23756.723646446
Area 44912086.053606

Sphere

Radius = n
Volume 226416796491.58
Surface area 179648344.21442
Circumference 23756.723646446

Square

Length = n
Perimeter 15124
Area 14295961
Diagonal 5347.1414793327

Cube

Length = n
Surface area 85775766
Volume 54053028541
Space diagonal 6548.8841034179

Equilateral Triangle

Length = n
Perimeter 11343
Area 6190332.6987558
Altitude 3274.442051709

Triangular Pyramid

Length = n
Surface area 6190332.6987558
Volume 6370210504.1685
Height 1782.3804931109