11781 (number)

11781 is an odd 5-digits composite number following 11780 and preceding 11782. In scientific notation, it is written as 1.1781 × 10^4. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 5760 positive integers (up to 11781) that are relatively prime to 11781.

Interesting facts

Basic properties

Name

Name eleven thousand seven hundred eighty-one

Notation

Scientific notation 1.1781 × 10^4
Engineering notation 1.1781 × 10^3

Prime Factorization of 11781

Prime Factorization 51 × 3 × 7 × 11

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 11781
Product of the distinct prime numbers

The prime factorization of 11781 is 51 × 3 × 7 × 11. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 36, 45, 721, 804, 4922, 1821, 49587, 19991, 256739, 999208, 2939974, 4441091, 2584428, 42983423, 765299590, 732058623, 4333493280, 7810758639

Basic calculations (n = 11781)

Multiplication

n×y
n×2 23562
n×3 35343
n×4 47124
n×5 58905

Division

n÷y
n÷2 5890.5
n÷3 3927
n÷3 2945.25
n÷5 2356.2

Exponentiation

ny
n2 138791961
n3 1635108092541
n4 19263208438225521
n5 2.2693985861073E+20

Nth Root

y√n
2√n 108.54031509075
3√n 22.754155341281
4√n 10.418268334553
5√n 6.5198323906279

Divisors of 11781

1, 3, 7, 11, 21, 33, 51, 77, 153, 231, 357, 561, 1071, 1683, 3927, 11781

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -11780
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 11781 can be divided by 16 positive divisors. The sum of these divisors (counting 11781) is 1, the average is 0.0625.

Base conversion 11781

Base System Value
2 Binary 10111000000101
3 Ternary 121011100
4 Quaternary 2320011
5 Quinary 334111
6 Senary 130313
8 Octal 27005
10 Decimal 11781
12 Duodecimal 6999
16 Hexadecimal 2e05
20 Vigesimal 1991
36 Base36 939

Cryptographic Hash Functions

md5 30f21d8fae944d4353b36d59500d9eaa
sha1 66f974a8b91174539b43aa3b9028b7530cca6eb1
sha256 136c3808b91375ffea9b3c54ea97ed087fab250f1c2ac98dd89bc66c33e8e6d5
sha512 932b0070c07d63941e3c4a0b903c6fdb672c9f4b7418f5d8d35d350fc58f9d293ee564be33fbd8df305a5b754e58be00ce67cd26c7d96727f02b3ca761bee569
ripemd-160 6c1355c0b370e084917682505324c580239f876f

11781 as geometric shapes

Circle

Radius = n
Diameter 23562
Circumference 74022.206103883
Area 436027805.05492

Sphere

Radius = n
Volume 6849124761802.7
Surface area 1744111220.2197
Circumference 74022.206103883

Square

Length = n
Perimeter 47124
Area 138791961
Diagonal 16660.849978317

Cube

Length = n
Surface area 832751766
Volume 1635108092541
Space diagonal 20405.290563969

Equilateral Triangle

Length = n
Perimeter 35343
Area 60098682.03353
Altitude 10202.645281984

Triangular Pyramid

Length = n
Surface area 60098682.03353
Volume 192699336701.46
Height 5553.6166594391