81489732 (number)

81489732 is an even 8-digits composite number following 81489731 and preceding 81489733. In scientific notation, it is written as 8.1489732 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors. There are 26835648 positive integers (up to 81489732) that are relatively prime to 81489732.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand seven hundred thirty-two

Notation

Scientific notation 8.1489732 × 10^7
Engineering notation 8.1489732 × 10^6

Prime Factorization of 81489732

Prime Factorization 2 × 2 × 3 × 83 × 81817

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40744866
Product of the distinct prime numbers

The prime factorization of 81489732 is 2 × 2 × 3 × 83 × 81817. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 40, 86, 788, 207, 6552, 376, 61698, 54753, 26918, 497153, 5058350, 5699420, 7136472, 92325561, 548141582, 352183209, 4824168828, 4632570101

Basic calculations (n = 81489732)

Multiplication

n×y
n×2 162979464
n×3 244469196
n×4 325958928
n×5 407448660

Division

n÷y
n÷2 40744866
n÷3 27163244
n÷3 20372433
n÷5 16297946.4

Exponentiation

ny
n2 6640576421431824
n3 5.41138792908E+23
n4 4.4097255208876E+31
n5 3.5934735089069E+39

Nth Root

y√n
2√n 9027.1663327979
3√n 433.54511436333
4√n 95.01140106744
5√n 38.213830937492

Divisors of 81489732

1, 2, 3, 4, 6, 12, 83, 166, 249, 332, 498, 996, 81817, 163634, 245451, 327268, 490902, 981804, 6790811, 13581622, 20372433, 27163244, 40744866, 81489732

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489731
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489732 can be divided by 24 positive divisors. The sum of these divisors (counting 81489732) is 1, the average is 0.041666666666667.

Base conversion 81489732

Base System Value
2 Binary 100110110110110111101000100
3 Ternary 12200100002220020
4 Quaternary 10312312331010
5 Quinary 131330132412
6 Senary 12030335140
8 Octal 466667504
10 Decimal 81489732
12 Duodecimal 2335a4b0
16 Hexadecimal 4db6f44
20 Vigesimal 159646c
36 Base36 1cilvo

Cryptographic Hash Functions

md5 f8cdafb691c87cf47586c01e4fe370ce
sha1 06c1d68510c34b755741e646e803f60d23cf3227
sha256 6d02111041a1063914140f427f325b78981eb06c17c91e477048309a6adbeb9d
sha512 1216e9204f2f3a1425dcc44297d5527e6c5d40ee3d1aac7d8654bee05c622cabd5eaa652cf5ba763a36c0b8428720217e678f6ed81c820983e44431960b4d7f0
ripemd-160 09c4f7457483f75b6f4ea4fb8266e917ac960096

81489732 as geometric shapes

Circle

Radius = n
Diameter 162979464
Circumference 512015086.7884
Area 2.0861986101172E+16

Sphere

Radius = n
Volume 2.266716875163E+24
Surface area 8.3447944404687E+16
Circumference 512015086.7884

Square

Length = n
Perimeter 325958928
Area 6640576421431824
Diagonal 115243884.18855

Cube

Length = n
Surface area 39843458528590944
Volume 5.41138792908E+23
Space diagonal 141144356.11917

Equilateral Triangle

Length = n
Perimeter 244469196
Area 2.875453938366E+15
Altitude 70572178.059586

Triangular Pyramid

Length = n
Surface area 2.875453938366E+15
Volume 6.3773818338058E+22
Height 38414628.06285