81330668 (number)

81330668 is an even 8-digits composite number following 81330667 and preceding 81330669. In scientific notation, it is written as 8.1330668 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 38897232 positive integers (up to 81330668) that are relatively prime to 81330668.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty thousand six hundred sixty-eight

Notation

Scientific notation 8.1330668 × 10^7
Engineering notation 8.1330668 × 10^6

Prime Factorization of 81330668

Prime Factorization 2 × 2 × 23 × 884029

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40665334
Product of the distinct prime numbers

The prime factorization of 81330668 is 2 × 2 × 23 × 884029. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 4, 47, 86, 713, 92, 8443, 5380, 36315, 77154, 730055, 9128, 1123625, 4799792, 35594547, 5351291, 704264181, 886692972, 9197370814, 7326056993

Basic calculations (n = 81330668)

Multiplication

n×y
n×2 162661336
n×3 243992004
n×4 325322672
n×5 406653340

Division

n÷y
n÷2 40665334
n÷3 27110222.666667
n÷3 20332667
n÷5 16266133.6

Exponentiation

ny
n2 6614677557326224
n3 5.3797614434195E+23
n4 4.3753959187395E+31
n5 3.5585387283556E+39

Nth Root

y√n
2√n 9018.3517341031
3√n 433.26284428717
4√n 94.965002680477
5√n 38.198900967415

Divisors of 81330668

1, 2, 4, 23, 46, 92, 884029, 1768058, 3536116, 20332667, 40665334, 81330668

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 -81330667
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 81330668 can be divided by 12 positive divisors. The sum of these divisors (counting 81330668) is 1, the average is 0.083333333333333.

Base conversion 81330668

Base System Value
2 Binary 100110110010000000111101100
3 Ternary 12200001000200222
4 Quaternary 10312100013230
5 Quinary 131310040133
6 Senary 12023110512
8 Octal 466200754
10 Decimal 81330668
12 Duodecimal 232a2438
16 Hexadecimal 4d901ec
20 Vigesimal 15866d8
36 Base36 1cf758

Cryptographic Hash Functions

md5 9ab8a59d33a69d96e5afec88c513575c
sha1 7f1f01f45ddc476a2119e35a61700915f8aca8ab
sha256 310b95e5699dad81ffb24aa3929237b4aafdcf203d8832784a174b9e3f47fc78
sha512 8ef1be2ffa2c0dad1efcb9dc26a361be67c273c64655ccd0eb1fd5f6b75f0d5887160b4530b4f8c7d71874997aec19c7fce159141e63a4683a941dd05960a582
ripemd-160 a880d569e1d36f93e8430528f1d3ee4bfbfb97d1

81330668 as geometric shapes

Circle

Radius = n
Diameter 162661336
Circumference 511015658.2007
Area 2.0780622419961E+16

Sphere

Radius = n
Volume 2.2534692038283E+24
Surface area 8.3122489679845E+16
Circumference 511015658.2007

Square

Length = n
Perimeter 325322672
Area 6614677557326224
Diagonal 115018933.72246

Cube

Length = n
Surface area 39688065343957344
Volume 5.3797614434195E+23
Space diagonal 140868849.18952

Equilateral Triangle

Length = n
Perimeter 243992004
Area 2.8642394012437E+15
Altitude 70434424.594758

Triangular Pyramid

Length = n
Surface area 2.8642394012437E+15
Volume 6.3401096630131E+22
Height 38339644.574154