81730892 (number)

81730892 is an even 8-digits composite number following 81730891 and preceding 81730893. In scientific notation, it is written as 8.1730892 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 40659696 positive integers (up to 81730892) that are relatively prime to 81730892.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty thousand eight hundred ninety-two

Notation

Scientific notation 8.1730892 × 10^7
Engineering notation 8.1730892 × 10^6

Prime Factorization of 81730892

Prime Factorization 2 × 2 × 199 × 102677

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40865446
Product of the distinct prime numbers

The prime factorization of 81730892 is 2 × 2 × 199 × 102677. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 60, 91, 313, 963, 8697, 8525, 55728, 1981, 342599, 671717, 1121382, 1657102, 36649544, 88013504, 934975458, 431490378, 5174402413, 4397620706

Basic calculations (n = 81730892)

Multiplication

n×y
n×2 163461784
n×3 245192676
n×4 326923568
n×5 408654460

Division

n÷y
n÷2 40865446
n÷3 27243630.666667
n÷3 20432723
n÷5 16346178.4

Exponentiation

ny
n2 6679938707115664
n3 5.4595734903789E+23
n4 4.4621581130822E+31
n5 3.6469616282725E+39

Nth Root

y√n
2√n 9040.5139234448
3√n 433.97236970777
4√n 95.081617168856
5√n 38.236422146202

Divisors of 81730892

1, 2, 4, 199, 398, 796, 102677, 205354, 410708, 20432723, 40865446, 81730892

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81730891
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81730892 can be divided by 12 positive divisors. The sum of these divisors (counting 81730892) is 1, the average is 0.083333333333333.

Base conversion 81730892

Base System Value
2 Binary 100110111110001110101001100
3 Ternary 12200210100201002
4 Quaternary 10313301311030
5 Quinary 131410342032
6 Senary 12035435432
8 Octal 467616514
10 Decimal 81730892
12 Duodecimal 23455b78
16 Hexadecimal 4df1d4c
20 Vigesimal 15ag74c
36 Base36 1cnryk

Cryptographic Hash Functions

md5 f9a9c62f543799146eac1ba123663088
sha1 964cc15917afa5666d11f27530f7814ade1366ee
sha256 6ba8cad68aa41cc88d71a0aa5dcd8d6191ab4f884c705756b03eadab79f7307c
sha512 84f16dc3757cd3a7f5efa4d25297179246bd2820051cdd1fff16fd550136aaaa5b9559714f10bda1f7ecb447d891165642078e6aab61f3e33e892c6c6c2dd898
ripemd-160 959f11f0ff51a5106cf2893f5147d5a64ecbf8ee

81730892 as geometric shapes

Circle

Radius = n
Diameter 163461784
Circumference 513530339.75708
Area 2.0985646368705E+16

Sphere

Radius = n
Volume 2.2869007958811E+24
Surface area 8.3942585474819E+16
Circumference 513530339.75708

Square

Length = n
Perimeter 326923568
Area 6679938707115664
Diagonal 115584935.93125

Cube

Length = n
Surface area 40079632242693984
Volume 5.4595734903789E+23
Space diagonal 141562057.49192

Equilateral Triangle

Length = n
Perimeter 245192676
Area 2.8924983080426E+15
Altitude 70781028.745962

Triangular Pyramid

Length = n
Surface area 2.8924983080426E+15
Volume 6.4341690623887E+22
Height 38528311.977084