11311981 (number)

11311981 is an odd 8-digits composite number following 11311980 and preceding 11311982. In scientific notation, it is written as 1.1311981 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 11225500 positive integers (up to 11311981) that are relatively prime to 11311981.

Interesting facts

Basic properties

Name

Name eleven million three hundred eleven thousand nine hundred eighty-one

Notation

Scientific notation 1.1311981 × 10^7
Engineering notation 1.1311981 × 10^6

Prime Factorization of 11311981

Prime Factorization 131 × 86351

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 11311981
Product of the distinct prime numbers

The prime factorization of 11311981 is 131 × 86351. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 11311981)

Multiplication

n×y
n×2 22623962
n×3 33935943
n×4 45247924
n×5 56559905

Division

n÷y
n÷2 5655990.5
n÷3 3770660.3333333
n÷3 2827995.25
n÷5 2262396.2

Exponentiation

ny
n2 127960914144361
n3 1.4474914295436E+21
n4 1.6373995548661E+28
n5 1.8522232654053E+35

Nth Root

y√n
2√n 3363.3288569511
3√n 224.4809831065
4√n 57.994213995459
5√n 25.745879567175

Divisors of 11311981

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 -11311980
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 11311981 can be divided by 4 positive divisors. The sum of these divisors (counting 11311981) is 1, the average is 0.25.

Base conversion 11311981

Base System Value
2 Binary 101011001001101101101101
3 Ternary 210021201010021
4 Quaternary 223021231231
5 Quinary 10343440411
6 Senary 1042242141
8 Octal 53115555
10 Decimal 11311981
12 Duodecimal 3956351
16 Hexadecimal ac9b6d
20 Vigesimal 3adjj1
36 Base36 6qgdp

Cryptographic Hash Functions

md5 5555edfd68ada1ac601b584dd87f55d6
sha1 7050763339ad22b26f9429ce42b0f17b64997889
sha256 92002bedd99a316b649496b677103934059265b2e5cafc48ee8f5f38e089013c
sha512 fd71385c5e0924c657ed35bb6cb76a98aadd138c7b0ab6a7ded86f42fde3244cdd12f3b3f5a9f3df5be30e97ea33a2edb5c6400a3e80df45253aaf46c1597385
ripemd-160 8c2090e47e7c46629a183a59d8a4693908727af3

11311981 as geometric shapes

Circle

Radius = n
Diameter 22623962
Circumference 71075272.814295
Area 4.0200106782256E+14

Sphere

Radius = n
Volume 6.0632379215847E+21
Surface area 1.6080042712902E+15
Circumference 71075272.814295

Square

Length = n
Perimeter 45247924
Area 127960914144361
Diagonal 15997556.947507

Cube

Length = n
Surface area 767765484866166
Volume 1.4474914295436E+21
Space diagonal 19592925.826254

Equilateral Triangle

Length = n
Perimeter 33935943
Area 55408701170248
Altitude 9796462.9131269

Triangular Pyramid

Length = n
Surface area 55408701170248
Volume 1.7058850092329E+20
Height 5332518.9825023