81189628 (number)

81189628 is an even 8-digits composite number following 81189627 and preceding 81189629. In scientific notation, it is written as 8.1189628 × 10^7. The sum of its digits is 43. It has a total of 5 prime factors and 18 positive divisors. There are 37471824 positive integers (up to 81189628) that are relatively prime to 81189628.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred eighty-nine thousand six hundred twenty-eight

Notation

Scientific notation 8.1189628 × 10^7
Engineering notation 8.1189628 × 10^6

Prime Factorization of 81189628

Prime Factorization 2 × 2 × 13 × 13 × 120103

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 3122678
Product of the distinct prime numbers

The prime factorization of 81189628 is 2 × 2 × 13 × 13 × 120103. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 7, 92, 15, 341, 295, 2302, 3046, 30915, 74322, 753836, 856176, 7656553, 3142273, 13619177, 53848077, 879571109, 306195971, 6071164957, 768885219

Basic calculations (n = 81189628)

Multiplication

n×y
n×2 162379256
n×3 243568884
n×4 324758512
n×5 405948140

Division

n÷y
n÷2 40594814
n÷3 27063209.333333
n÷3 20297407
n÷5 16237925.6

Exponentiation

ny
n2 6591755694778384
n3 5.3518219272594E+23
n4 4.3451243139643E+31
n5 3.5277902666452E+39

Nth Root

y√n
2√n 9010.5287303243
3√n 433.01225103879
4√n 94.923804866452
5√n 38.185643203343

Divisors of 81189628

1, 2, 4, 13, 26, 52, 169, 338, 676, 120103, 240206, 480412, 1561339, 3122678, 6245356, 20297407, 40594814, 81189628

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81189627
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81189628 can be divided by 18 positive divisors. The sum of these divisors (counting 81189628) is 1, the average is 0.055555555555556.

Base conversion 81189628

Base System Value
2 Binary 100110101101101101011111100
3 Ternary 12122202212020021
4 Quaternary 10311231223330
5 Quinary 131241032003
6 Senary 12020101524
8 Octal 465555374
10 Decimal 81189628
12 Duodecimal 232348a4
16 Hexadecimal 4d6dafc
20 Vigesimal 1578e18
36 Base36 1cc6bg

Cryptographic Hash Functions

md5 0c29d45e95af534f40223475cc4a8319
sha1 c85874e2b382349c638fd46900f2b75dd2e7edef
sha256 ed3294bd1f66636554a4e1f26bd7c89746dbb9c7a9539a89c49074cb54e02837
sha512 bfdbb1e4312759c017c617e9f1f7ccc005307b518922fc3501e9f99fbb19218ba82c3841d589efae9292e5f8d037b0af6926f2cf68ff2b4d43653ef02a0fd896
ripemd-160 e2c0ab23192aa9349929111515824779643b580e

81189628 as geometric shapes

Circle

Radius = n
Diameter 162379256
Circumference 510129477.74498
Area 2.0708611264974E+16

Sphere

Radius = n
Volume 2.2417659266665E+24
Surface area 8.2834445059898E+16
Circumference 510129477.74498

Square

Length = n
Perimeter 324758512
Area 6591755694778384
Diagonal 114819473.04163

Cube

Length = n
Surface area 39550534168670304
Volume 5.3518219272594E+23
Space diagonal 140624560.74362

Equilateral Triangle

Length = n
Perimeter 243568884
Area 2.8543139436094E+15
Altitude 70312280.371808

Triangular Pyramid

Length = n
Surface area 2.8543139436094E+15
Volume 6.3071826274466E+22
Height 38273157.680542