81708613 (number)

81708613 is an odd 8-digits composite number following 81708612 and preceding 81708614. In scientific notation, it is written as 8.1708613 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 64304640 positive integers (up to 81708613) that are relatively prime to 81708613.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred eight thousand six hundred thirteen

Notation

Scientific notation 8.1708613 × 10^7
Engineering notation 8.1708613 × 10^6

Prime Factorization of 81708613

Prime Factorization 17 × 7 × 41 × 16747

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81708613
Product of the distinct prime numbers

The prime factorization of 81708613 is 17 × 7 × 41 × 16747. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81708613)

Multiplication

n×y
n×2 163417226
n×3 245125839
n×4 326834452
n×5 408543065

Division

n÷y
n÷2 40854306.5
n÷3 27236204.333333
n÷3 20427153.25
n÷5 16341722.6

Exponentiation

ny
n2 6676297438383769
n3 5.4551100366579E+23
n4 4.457294748577E+31
n5 3.6419937163841E+39

Nth Root

y√n
2√n 9039.2816639377
3√n 433.93293399042
4√n 95.075136938832
5√n 38.234337347841

Divisors of 81708613

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81708612
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81708613 can be divided by 16 positive divisors. The sum of these divisors (counting 81708613) is 1, the average is 0.0625.

Base conversion 81708613

Base System Value
2 Binary 100110111101100011001000101
3 Ternary 12200202020010221
4 Quaternary 10313230121011
5 Quinary 131404133423
6 Senary 12035144341
8 Octal 467543105
10 Decimal 81708613
12 Duodecimal 234450b1
16 Hexadecimal 4dec645
20 Vigesimal 15adbad
36 Base36 1cnarp

Cryptographic Hash Functions

md5 e354f1e3d22609ebae144c4d5ee789d0
sha1 633b933f45dca89d5d111a788ca9c36d67047b49
sha256 aaa22de022085e4c8bbbc9ca24c98e7e1d8f823724eecb8bb1a7ade1767824f2
sha512 f9d6a7971c86a5df190b0c89f061848976b748255fde8725b88191c032c0f7c178cf6f18b4d1d702c465344b6c736231844d9a8b99c109659efbe5159393613a
ripemd-160 3adbcc4866f0ecdae7f361272aba3e3fb656f893

81708613 as geometric shapes

Circle

Radius = n
Diameter 163417226
Circumference 513390356.67162
Area 2.0974206985607E+16

Sphere

Radius = n
Volume 2.2850311487585E+24
Surface area 8.3896827942427E+16
Circumference 513390356.67162

Square

Length = n
Perimeter 326834452
Area 6676297438383769
Diagonal 115553428.66729

Cube

Length = n
Surface area 40057784630302614
Volume 5.4551100366579E+23
Space diagonal 141523469.13198

Equilateral Triangle

Length = n
Perimeter 245125839
Area 2.8909215924307E+15
Altitude 70761734.565991

Triangular Pyramid

Length = n
Surface area 2.8909215924307E+15
Volume 6.4289088317327E+22
Height 38517809.555765