81092013 (number)

81092013 is an odd 8-digits composite number following 81092012 and preceding 81092014. In scientific notation, it is written as 8.1092013 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 53648400 positive integers (up to 81092013) that are relatively prime to 81092013.

Interesting facts

Basic properties

Name

Name eighty-one million ninety-two thousand thirteen

Notation

Scientific notation 8.1092013 × 10^7
Engineering notation 8.1092013 × 10^6

Prime Factorization of 81092013

Prime Factorization 3 × 131 × 206341

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81092013
Product of the distinct prime numbers

The prime factorization of 81092013 is 3 × 131 × 206341. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81092013)

Multiplication

n×y
n×2 162184026
n×3 243276039
n×4 324368052
n×5 405460065

Division

n÷y
n÷2 40546006.5
n÷3 27030671
n÷3 20273003.25
n÷5 16218402.6

Exponentiation

ny
n2 6575914572392169
n3 5.3325414999132E+23
n4 4.32426524634E+31
n5 3.5066337357165E+39

Nth Root

y√n
2√n 9005.110382444
3√n 432.83864330433
4√n 94.895260063103
5√n 38.17645659765

Divisors of 81092013

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 -81092012
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 81092013 can be divided by 8 positive divisors. The sum of these divisors (counting 81092013) is 1, the average is 0.125.

Base conversion 81092013

Base System Value
2 Binary 100110101010101110110101101
3 Ternary 12122120220022220
4 Quaternary 10311111312231
5 Quinary 131224421023
6 Senary 12014025553
8 Octal 465256655
10 Decimal 81092013
12 Duodecimal 231a82b9
16 Hexadecimal 4d55dad
20 Vigesimal 156ga0d
36 Base36 1ca2zx

Cryptographic Hash Functions

md5 a611c873665d886eac7596de7fadf645
sha1 92691c0bcb48f4611d43aaa80d97f26699ebe718
sha256 872dae574d8fb1bd14dcc7656fc13b4007b42ef48f07e68c7d1a054ae2cb5d35
sha512 ed06c2703580b8629e09240de91b4bad6401b209ce085fd862adafcb3607d29118f06abd9af4eb8d231ab900c979a1d42a4a9b8d24e64d690d77837b7b8c0a80
ripemd-160 ce9844a4e9b785c8e3b49dbf5cb8cf457ce81af0

81092013 as geometric shapes

Circle

Radius = n
Diameter 162184026
Circumference 509516144.61122
Area 2.0658844911261E+16

Sphere

Radius = n
Volume 2.2336897601453E+24
Surface area 8.2635379645045E+16
Circumference 509516144.61122

Square

Length = n
Perimeter 324368052
Area 6575914572392169
Diagonal 114681424.58474

Cube

Length = n
Surface area 39455487434353014
Volume 5.3325414999132E+23
Space diagonal 140455486.60404

Equilateral Triangle

Length = n
Perimeter 243276039
Area 2.847454536404E+15
Altitude 70227743.302018

Triangular Pyramid

Length = n
Surface area 2.847454536404E+15
Volume 6.2844604259121E+22
Height 38227141.528245