81323786 (number)

81323786 is an even 8-digits composite number following 81323785 and preceding 81323787. In scientific notation, it is written as 8.1323786 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 40259200 positive integers (up to 81323786) that are relatively prime to 81323786.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred twenty-three thousand seven hundred eighty-six

Notation

Scientific notation 8.1323786 × 10^7
Engineering notation 8.1323786 × 10^6

Prime Factorization of 81323786

Prime Factorization 2 × 101 × 402593

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81323786
Product of the distinct prime numbers

The prime factorization of 81323786 is 2 × 101 × 402593. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81323786)

Multiplication

n×y
n×2 162647572
n×3 243971358
n×4 325295144
n×5 406618930

Division

n÷y
n÷2 40661893
n÷3 27107928.666667
n÷3 20330946.5
n÷5 16264757.2

Exponentiation

ny
n2 6613558169373796
n3 5.3783958926471E+23
n4 4.3739151659691E+31
n5 3.5570334093942E+39

Nth Root

y√n
2√n 9017.9701707202
3√n 433.25062339898
4√n 94.962993690807
5√n 38.198254486225

Divisors of 81323786

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81323785
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81323786 can be divided by 8 positive divisors. The sum of these divisors (counting 81323786) is 1, the average is 0.125.

Base conversion 81323786

Base System Value
2 Binary 100110110001110011100001010
3 Ternary 12200000200021002
4 Quaternary 10312032130022
5 Quinary 131304330121
6 Senary 12023015002
8 Octal 466163412
10 Decimal 81323786
12 Duodecimal 2329a462
16 Hexadecimal 4d8e70a
20 Vigesimal 1585996
36 Base36 1cf1u2

Cryptographic Hash Functions

md5 1dc5ed715560336ef423a791b6a9e8c7
sha1 4777dcda2005c235b8ce98de7cd77ff4e5548a7c
sha256 a46e70dfb2746652a6e5506151291c31bc61c3af99b58566603df4a0ca413220
sha512 b4f99ad8cb897fb8d689710c5d9bba15987874e22b20d6af68c061045dab5150846a418a4cc4c8fe21d60709bcc7eaba80bbee99b26f2b40f8d0b37728937267
ripemd-160 a80ff3f7843576c38a8aedfa64d16c3b42f69945

81323786 as geometric shapes

Circle

Radius = n
Diameter 162647572
Circumference 510972417.31942
Area 2.0777105758993E+16

Sphere

Radius = n
Volume 2.2528972032583E+24
Surface area 8.3108423035974E+16
Circumference 510972417.31942

Square

Length = n
Perimeter 325295144
Area 6613558169373796
Diagonal 115009201.10473

Cube

Length = n
Surface area 39681349016242776
Volume 5.3783958926471E+23
Space diagonal 140856929.21586

Equilateral Triangle

Length = n
Perimeter 243971358
Area 2.8637546920419E+15
Altitude 70428464.607929

Triangular Pyramid

Length = n
Surface area 2.8637546920419E+15
Volume 6.3385003459944E+22
Height 38336400.368242