81729669 (number)

81729669 is an odd 8-digits composite number following 81729668 and preceding 81729670. In scientific notation, it is written as 8.1729669 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 46654272 positive integers (up to 81729669) that are relatively prime to 81729669.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-nine thousand six hundred sixty-nine

Notation

Scientific notation 8.1729669 × 10^7
Engineering notation 8.1729669 × 10^6

Prime Factorization of 81729669

Prime Factorization 3 × 7 × 1597 × 2437

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81729669
Product of the distinct prime numbers

The prime factorization of 81729669 is 3 × 7 × 1597 × 2437. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81729669)

Multiplication

n×y
n×2 163459338
n×3 245189007
n×4 326918676
n×5 408648345

Division

n÷y
n÷2 40864834.5
n÷3 27243223
n÷3 20432417.25
n÷5 16345933.8

Exponentiation

ny
n2 6679738794849561
n3 5.4593284070951E+23
n4 4.4618910367418E+31
n5 3.6466887754698E+39

Nth Root

y√n
2√n 9040.4462832318
3√n 433.97020508008
4√n 95.081261472657
5√n 38.236307713524

Divisors of 81729669

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 -81729668
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 81729669 can be divided by 16 positive divisors. The sum of these divisors (counting 81729669) is 1, the average is 0.0625.

Base conversion 81729669

Base System Value
2 Binary 100110111110001100010000101
3 Ternary 12200210022000210
4 Quaternary 10313301202011
5 Quinary 131410322134
6 Senary 12035430033
8 Octal 467614205
10 Decimal 81729669
12 Duodecimal 23455319
16 Hexadecimal 4df1885
20 Vigesimal 15ag439
36 Base36 1cnr0l

Cryptographic Hash Functions

md5 3959e1bfea7eb583c46970f522dca3d3
sha1 2d7d9a0f641643a0898e08146102e71b8d490ce7
sha256 3754b94abcbe93cddb308ce3b45c973e020b7105072116df9bef2034fede2101
sha512 62b4fa660bef2e6cf96e3dc34eee3a117c82cba5d49e8641db0155417ae1d2a1e6f8a9b0896de3fbbe3bf80047ae8b8cd508b8a2c8a6789e828576547b257c30
ripemd-160 36939a8802429259976100df0ea7be0c3dac415a

81729669 as geometric shapes

Circle

Radius = n
Diameter 163459338
Circumference 513522655.42145
Area 2.0985018325798E+16

Sphere

Radius = n
Volume 2.2867981356352E+24
Surface area 8.3940073303192E+16
Circumference 513522655.42145

Square

Length = n
Perimeter 326918676
Area 6679738794849561
Diagonal 115583206.34806

Cube

Length = n
Surface area 40078432769097366
Volume 5.4593284070951E+23
Space diagonal 141559939.19379

Equilateral Triangle

Length = n
Perimeter 245189007
Area 2.8924117434921E+15
Altitude 70779969.596894

Triangular Pyramid

Length = n
Surface area 2.8924117434921E+15
Volume 6.4338802289689E+22
Height 38527735.449355