81640595 (number)

81640595 is an odd 8-digits composite number following 81640594 and preceding 81640596. In scientific notation, it is written as 8.1640595 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 65312472 positive integers (up to 81640595) that are relatively prime to 81640595.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty thousand five hundred ninety-five

Notation

Scientific notation 8.1640595 × 10^7
Engineering notation 8.1640595 × 10^6

Prime Factorization of 81640595

Prime Factorization 5 × 16328119

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81640595
Product of the distinct prime numbers

The prime factorization of 81640595 is 5 × 16328119. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81640595)

Multiplication

n×y
n×2 163281190
n×3 244921785
n×4 326562380
n×5 408202975

Division

n÷y
n÷2 40820297.5
n÷3 27213531.666667
n÷3 20410148.75
n÷5 16328119

Exponentiation

ny
n2 6665186751954025
n3 5.4414981221564E+23
n4 4.4424714438423E+31
n5 3.626860119458E+39

Nth Root

y√n
2√n 9035.5185241357
3√n 433.81249199963
4√n 95.055344532203
5√n 38.22796962369

Divisors of 81640595

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81640594
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640595 can be divided by 4 positive divisors. The sum of these divisors (counting 81640595) is 1, the average is 0.25.

Base conversion 81640595

Base System Value
2 Binary 100110111011011110010010011
3 Ternary 12200121202211202
4 Quaternary 10313123302103
5 Quinary 131344444340
6 Senary 12033501415
8 Octal 467336223
10 Decimal 81640595
12 Duodecimal 2341186b
16 Hexadecimal 4ddbc93
20 Vigesimal 15a519f
36 Base36 1cluab

Cryptographic Hash Functions

md5 78d7a585db2b2f9afdc5420ffab58705
sha1 c85ebfbc35e9f7ac9e85b4119fbd06068a36fadb
sha256 e8130ed250129711a9f8efffb226e16c5d707d9b953015c34f71262b3e96bdee
sha512 22ac176428ccffa7adb2448a813a2dccb523b1722b12e2ea15718ef844e173368911b42bf8e18c1f8dcab050bfbe14961091cd9c80e04e3b5adfab4d991d93dd
ripemd-160 0d5c0f2a2d47d9ec016736b3fb92acceb4f64262

81640595 as geometric shapes

Circle

Radius = n
Diameter 163281190
Circumference 512962986.9734
Area 2.0939301734743E+16

Sphere

Radius = n
Volume 2.2793294033452E+24
Surface area 8.3757206938971E+16
Circumference 512962986.9734

Square

Length = n
Perimeter 326562380
Area 6665186751954025
Diagonal 115457236.68921

Cube

Length = n
Surface area 39991120511724150
Volume 5.4414981221564E+23
Space diagonal 141405658.50015

Equilateral Triangle

Length = n
Perimeter 244921785
Area 2.8861105240798E+15
Altitude 70702829.250077

Triangular Pyramid

Length = n
Surface area 2.8861105240798E+15
Volume 6.4128670366511E+22
Height 38485745.56307