81680265 (number)

81680265 is an odd 8-digits composite number following 81680264 and preceding 81680266. In scientific notation, it is written as 8.1680265 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 43562736 positive integers (up to 81680265) that are relatively prime to 81680265.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred eighty thousand two hundred sixty-five

Notation

Scientific notation 8.1680265 × 10^7
Engineering notation 8.1680265 × 10^6

Prime Factorization of 81680265

Prime Factorization 45 × 3 × 605039

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81680265
Product of the distinct prime numbers

The prime factorization of 81680265 is 45 × 3 × 605039. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81680265)

Multiplication

n×y
n×2 163360530
n×3 245040795
n×4 326721060
n×5 408401325

Division

n÷y
n÷2 40840132.5
n÷3 27226755
n÷3 20420066.25
n÷5 16336053

Exponentiation

ny
n2 6671665690470225
n3 5.4494342158902E+23
n4 4.4511123085398E+31
n5 3.6356803290629E+39

Nth Root

y√n
2√n 9037.7134829557
3√n 433.882745264
4√n 95.066889519726
5√n 38.231683974099

Divisors of 81680265

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 -81680264
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 81680265 can be divided by 8 positive divisors. The sum of these divisors (counting 81680265) is 1, the average is 0.125.

Base conversion 81680265

Base System Value
2 Binary 100110111100101011110001001
3 Ternary 12200200210021000
4 Quaternary 10313211132021
5 Quinary 131402232030
6 Senary 12034405213
8 Octal 467453611
10 Decimal 81680265
12 Duodecimal 23430809
16 Hexadecimal 4de5789
20 Vigesimal 15aa0d5
36 Base36 1cmow9

Cryptographic Hash Functions

md5 c5a9cc681a9eadfb66f4043141af155b
sha1 a39a504cc6d2c8f62dd979142c9466a9e0491546
sha256 1072afa2c2ae789931cf89d660a3a0553bd138967516cc06f33bd3ada5adb709
sha512 e86e50f8b427e218c0b556b548d52db9b20f4c9ec39b9ca0fc3735ad48f5411d1be49cd9b7bff08e331b7efff635d120c72487f328b7112054c52101b97e9381
ripemd-160 27cd029fbca88697b283d935266385d876ddaff4

81680265 as geometric shapes

Circle

Radius = n
Diameter 163360530
Circumference 513212240.93454
Area 2.0959655920388E+16

Sphere

Radius = n
Volume 2.2826536665149E+24
Surface area 8.3838623681553E+16
Circumference 513212240.93454

Square

Length = n
Perimeter 326721060
Area 6671665690470225
Diagonal 115513338.54123

Cube

Length = n
Surface area 40029994142821350
Volume 5.4494342158902E+23
Space diagonal 141474368.95569

Equilateral Triangle

Length = n
Perimeter 245040795
Area 2.8889159867521E+15
Altitude 70737184.477845

Triangular Pyramid

Length = n
Surface area 2.8889159867521E+15
Volume 6.4222198128099E+22
Height 38504446.180409