81707091 (number)

81707091 is an odd 8-digits composite number following 81707090 and preceding 81707092. In scientific notation, it is written as 8.1707091 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 54449640 positive integers (up to 81707091) that are relatively prime to 81707091.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred seven thousand ninety-one

Notation

Scientific notation 8.1707091 × 10^7
Engineering notation 8.1707091 × 10^6

Prime Factorization of 81707091

Prime Factorization 3 × 3907 × 6971

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81707091
Product of the distinct prime numbers

The prime factorization of 81707091 is 3 × 3907 × 6971. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81707091)

Multiplication

n×y
n×2 163414182
n×3 245121273
n×4 326828364
n×5 408535455

Division

n÷y
n÷2 40853545.5
n÷3 27235697
n÷3 20426772.75
n÷5 16341418.2

Exponentiation

ny
n2 6676048719682281
n3 5.4548052025951E+23
n4 4.4569626507571E+31
n5 3.6416545288902E+39

Nth Root

y√n
2√n 9039.19747544
3√n 433.93023965992
4√n 95.07469419062
5√n 38.2341949073

Divisors of 81707091

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 -81707090
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 81707091 can be divided by 8 positive divisors. The sum of these divisors (counting 81707091) is 1, the average is 0.125.

Base conversion 81707091

Base System Value
2 Binary 100110111101100000001010011
3 Ternary 12200202011001120
4 Quaternary 10313230001103
5 Quinary 131404111331
6 Senary 12035133323
8 Octal 467540123
10 Decimal 81707091
12 Duodecimal 23444243
16 Hexadecimal 4dec053
20 Vigesimal 15ad7eb
36 Base36 1cn9lf

Cryptographic Hash Functions

md5 759e7fe711e88749174014a385cd646c
sha1 13046f5f12654e5bc2733241d59c56e625a0daf6
sha256 403d5d0d559254bda39958f63c29848c52ca15e8db0d6dfd4cacf7b89c6f699e
sha512 4aba0a92ef4ecdf1a8148daeaf63122a2d6a16a037af3a902a0b5fcd5b161dfa75d71f2f06011c3cbe280f548b0a984b7b2855c022616402eae4c1ec24b5b2c9
ripemd-160 c3d03a899724e90d10130bef199a9a8766a0a0bf

81707091 as geometric shapes

Circle

Radius = n
Diameter 163414182
Circumference 513380793.66359
Area 2.0973425612761E+16

Sphere

Radius = n
Volume 2.2849034601648E+24
Surface area 8.3893702451046E+16
Circumference 513380793.66359

Square

Length = n
Perimeter 326828364
Area 6676048719682281
Diagonal 115551276.23425

Cube

Length = n
Surface area 40056292318093686
Volume 5.4548052025951E+23
Space diagonal 141520832.95065

Equilateral Triangle

Length = n
Perimeter 245121273
Area 2.8908138940737E+15
Altitude 70760416.475327

Triangular Pyramid

Length = n
Surface area 2.8908138940737E+15
Volume 6.4285495813445E+22
Height 38517092.078084