81707028 (number)

81707028 is an even 8-digits composite number following 81707027 and preceding 81707029. In scientific notation, it is written as 8.1707028 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors. There are 25140576 positive integers (up to 81707028) that are relatively prime to 81707028.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1707028 × 10^7
Engineering notation 8.1707028 × 10^6

Prime Factorization of 81707028

Prime Factorization 2 × 2 × 3 × 13 × 523763

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40853514
Product of the distinct prime numbers

The prime factorization of 81707028 is 2 × 2 × 3 × 13 × 523763. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81707028)

Multiplication

n×y
n×2 163414056
n×3 245121084
n×4 326828112
n×5 408535140

Division

n÷y
n÷2 40853514
n÷3 27235676
n÷3 20426757
n÷5 16341405.6

Exponentiation

ny
n2 6676038424592784
n3 5.4547925848728E+23
n4 4.4569489046639E+31
n5 3.6416404894795E+39

Nth Root

y√n
2√n 9039.1939906166
3√n 433.93012813303
4√n 95.074675863853
5√n 38.234189011227

Divisors of 81707028

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81707027
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81707028 can be divided by 24 positive divisors. The sum of these divisors (counting 81707028) is 1, the average is 0.041666666666667.

Base conversion 81707028

Base System Value
2 Binary 100110111101100000000010100
3 Ternary 12200202010222020
4 Quaternary 10313230000110
5 Quinary 131404111103
6 Senary 12035133140
8 Octal 467540024
10 Decimal 81707028
12 Duodecimal 234441b0
16 Hexadecimal 4dec014
20 Vigesimal 15ad7b8
36 Base36 1cn9jo

Cryptographic Hash Functions

md5 1adcb62f70468a541668b08fddf54279
sha1 7e86e20eb9a385e925016133a73e454086c9e3c1
sha256 159a4edb2282dcaf81e920a21ad7908d8aa421cfe4cc6799d35ec107b11a34fa
sha512 e236381d96a29982746c3c826cf847ec31fba8397ea7ac8b510e6994911d88ca1d7ef130707065e0bc47dac74d6b56082f95cae38b607d3c475d9620d1e27162
ripemd-160 5754003ee0ec67717a560d8f0e503ea1c5af45c9

81707028 as geometric shapes

Circle

Radius = n
Diameter 163414056
Circumference 513380397.82291
Area 2.0973393269784E+16

Sphere

Radius = n
Volume 2.2848981748657E+24
Surface area 8.3893573079135E+16
Circumference 513380397.82291

Square

Length = n
Perimeter 326828112
Area 6676038424592784
Diagonal 115551187.1388

Cube

Length = n
Surface area 40056230547556704
Volume 5.4547925848728E+23
Space diagonal 141520723.83145

Equilateral Triangle

Length = n
Perimeter 245121084
Area 2.8908094361692E+15
Altitude 70760361.915726

Triangular Pyramid

Length = n
Surface area 2.8908094361692E+15
Volume 6.4285347112161E+22
Height 38517062.379599