81320265 (number)

81320265 is an odd 8-digits composite number following 81320264 and preceding 81320266. In scientific notation, it is written as 8.1320265 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 28 positive divisors. There are 36661248 positive integers (up to 81320265) that are relatively prime to 81320265.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred twenty thousand two hundred sixty-five

Notation

Scientific notation 8.1320265 × 10^7
Engineering notation 8.1320265 × 10^6

Prime Factorization of 81320265

Prime Factorization 51 × 3 × 13 × 2405 × 17

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81320265
Product of the distinct prime numbers

The prime factorization of 81320265 is 51 × 3 × 13 × 2405 × 17. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81320265)

Multiplication

n×y
n×2 162640530
n×3 243960795
n×4 325281060
n×5 406601325

Division

n÷y
n÷2 40660132.5
n÷3 27106755
n÷3 20330066.25
n÷5 16264053

Exponentiation

ny
n2 6612985499670225
n3 5.3776973327434E+23
n4 4.3731577218849E+31
n5 3.5562634483047E+39

Nth Root

y√n
2√n 9017.7749472916
3√n 433.24437062622
4√n 94.961965793109
5√n 38.197923713668

Divisors of 81320265

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81320264
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81320265 can be divided by 28 positive divisors. The sum of these divisors (counting 81320265) is 1, the average is 0.035714285714286.

Base conversion 81320265

Base System Value
2 Binary 100110110001101100101001001
3 Ternary 12200000111102200
4 Quaternary 10312031211021
5 Quinary 131304222030
6 Senary 12022550413
8 Octal 466154511
10 Decimal 81320265
12 Duodecimal 23298409
16 Hexadecimal 4d8d949
20 Vigesimal 15850d5
36 Base36 1cez49

Cryptographic Hash Functions

md5 ad982ab99daa3609173b4c2d04751fb9
sha1 203c4312d1f2442df2fa40bcbf491bd5974e05d1
sha256 aae3a85a44c9b1e8f5b09b1ee8601a8c8c085544e94514082db4c58fa47380b7
sha512 a45491fe497ec530f47f6d5c2a4556d210136629e6f8695565b146a307cb801c6fe405f09eb89529ee81bcb3d744f065d9769ec79575af3820906d22b319946d
ripemd-160 28fe7b8aff56b65fd644c98019597ddbdad0ecf4

81320265 as geometric shapes

Circle

Radius = n
Diameter 162640530
Circumference 510950294.22395
Area 2.077530666406E+16

Sphere

Radius = n
Volume 2.2526045911701E+24
Surface area 8.3101226656239E+16
Circumference 510950294.22395

Square

Length = n
Perimeter 325281060
Area 6612985499670225
Diagonal 115004221.65877

Cube

Length = n
Surface area 39677912998021350
Volume 5.3776973327434E+23
Space diagonal 140850830.66497

Equilateral Triangle

Length = n
Perimeter 243960795
Area 2.8635067187863E+15
Altitude 70425415.332483

Triangular Pyramid

Length = n
Surface area 2.8635067187863E+15
Volume 6.3376770852528E+22
Height 38334740.552925