81708520 (number)

81708520 is an even 8-digits composite number following 81708519 and preceding 81708521. In scientific notation, it is written as 8.1708520 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 32 positive divisors. There are 32288320 positive integers (up to 81708520) that are relatively prime to 81708520.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred eight thousand five hundred twenty

Notation

Scientific notation 8.1708520 × 10^7
Engineering notation 8.1708520 × 10^6

Prime Factorization of 81708520

Prime Factorization 2 × 2 × 2 × 5 × 83 × 24611

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20427130
Product of the distinct prime numbers

The prime factorization of 81708520 is 2 × 2 × 2 × 5 × 83 × 24611. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 7, 38, 52, 303, 446, 7204, 5915, 96871, 49370, 98026, 198258, 1583249, 9561123, 53218667, 48702521, 305106415, 161175911, 6300169767, 8887305138

Basic calculations (n = 81708520)

Multiplication

n×y
n×2 163417040
n×3 245125560
n×4 326834080
n×5 408542600

Division

n÷y
n÷2 40854260
n÷3 27236173.333333
n÷3 20427130
n÷5 16341704

Exponentiation

ny
n2 6676282240590400
n3 5.4550914098093E+23
n4 4.4572744556023E+31
n5 3.6419729900107E+39

Nth Root

y√n
2√n 9039.2765197221
3√n 433.93276935752
4√n 95.075109885407
5√n 38.234328644242

Divisors of 81708520

1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 24611, 49222, 98444, 123055, 196888, 246110, 492220, 984440, 2042713, 4085426, 8170852, 10213565, 16341704, 20427130, 40854260, 81708520

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81708519
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81708520 can be divided by 32 positive divisors. The sum of these divisors (counting 81708520) is 1, the average is 0.03125.

Base conversion 81708520

Base System Value
2 Binary 100110111101100010111101000
3 Ternary 12200202020000111
4 Quaternary 10313230113220
5 Quinary 131404133040
6 Senary 12035144104
8 Octal 467542750
10 Decimal 81708520
12 Duodecimal 23445034
16 Hexadecimal 4dec5e8
20 Vigesimal 15adb60
36 Base36 1cnap4

Cryptographic Hash Functions

md5 92a02f7513a42bb44aae7bb37f93a588
sha1 49f282a5b01b828cce5c36bd538d61b311bb916e
sha256 e77ad5f53a78b55b8d065623ce4ca48af733f680bd91a01975b14f3fbb9dd857
sha512 d655e770289e5d6ca41b0534c523d8baf3bd1a7765bb3c14e8c82498c5a8dd54179795c90511b282a1155307ac6f7ecb118bf24fc867b59d8b5136c749ceb2f1
ripemd-160 f7e8d2aacc4cc1b7cc2cd64bce5cb00b3136b0c1

81708520 as geometric shapes

Circle

Radius = n
Diameter 163417040
Circumference 513389772.33539
Area 2.0974159240331E+16

Sphere

Radius = n
Volume 2.2850233463623E+24
Surface area 8.3896636961323E+16
Circumference 513389772.33539

Square

Length = n
Perimeter 326834080
Area 6676282240590400
Diagonal 115553297.14543

Cube

Length = n
Surface area 40057693443542400
Volume 5.4550914098093E+23
Space diagonal 141523308.05126

Equilateral Triangle

Length = n
Perimeter 245125560
Area 2.8909150115931E+15
Altitude 70761654.025629

Triangular Pyramid

Length = n
Surface area 2.8909150115931E+15
Volume 6.428886879781E+22
Height 38517765.715144