81640197 (number)

81640197 is an odd 8-digits composite number following 81640196 and preceding 81640198. In scientific notation, it is written as 8.1640197 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 54215136 positive integers (up to 81640197) that are relatively prime to 81640197.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1640197 × 10^7
Engineering notation 8.1640197 × 10^6

Prime Factorization of 81640197

Prime Factorization 9 × 3 × 263 × 11497

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81640197
Product of the distinct prime numbers

The prime factorization of 81640197 is 9 × 3 × 263 × 11497. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 6, 40, 44, 199, 960, 1305, 2435, 74918, 81316, 861181, 973951, 9287225, 5106876, 34540365, 12475510, 125240088, 132594891, 3948756396, 7839388824

Basic calculations (n = 81640197)

Multiplication

n×y
n×2 163280394
n×3 244920591
n×4 326560788
n×5 408200985

Division

n÷y
n÷2 40820098.5
n÷3 27213399
n÷3 20410049.25
n÷5 16328039.4

Exponentiation

ny
n2 6665121766198809
n3 5.4414185402146E+23
n4 4.4423848158257E+31
n5 3.6267717151382E+39

Nth Root

y√n
2√n 9035.4964999163
3√n 433.81178704947
4√n 95.055228682679
5√n 38.22793235115

Divisors of 81640197

1, 3, 9, 27, 263, 789, 2367, 7101, 11497, 34491, 103473, 310419, 3023711, 9071133, 27213399, 81640197

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 -81640196
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 81640197 can be divided by 16 positive divisors. The sum of these divisors (counting 81640197) is 1, the average is 0.0625.

Base conversion 81640197

Base System Value
2 Binary 100110111011011101100000101
3 Ternary 12200121202022000
4 Quaternary 10313123230011
5 Quinary 131344441242
6 Senary 12033455513
8 Octal 467335405
10 Decimal 81640197
12 Duodecimal 23411599
16 Hexadecimal 4ddbb05
20 Vigesimal 15a509h
36 Base36 1cltz9

Cryptographic Hash Functions

md5 78eeec3e5f2c65bc205d898d4106890c
sha1 2c88a1846eb822fa354976e7c0dcf8a74c693ee5
sha256 9563796288e70a257791a96ecad7667e885c32dcf20fe0ca3a22012582dd61e8
sha512 91eb12febc4a8a432482cbed922c994620025b0113bbeb934d42d68966185be3be7c29acf4dbc04eccae77508656d8642fed4f856fb9462a0e540635815f6e9b
ripemd-160 6aebd5f7d0ce862ee2d755f4b4d7e9ede2fe4926

81640197 as geometric shapes

Circle

Radius = n
Diameter 163280394
Circumference 512960486.26565
Area 2.0939097575972E+16

Sphere

Radius = n
Volume 2.2792960681394E+24
Surface area 8.3756390303886E+16
Circumference 512960486.26565

Square

Length = n
Perimeter 326560788
Area 6665121766198809
Diagonal 115456673.83221

Cube

Length = n
Surface area 39990730597192854
Volume 5.4414185402146E+23
Space diagonal 141404969.14393

Equilateral Triangle

Length = n
Perimeter 244920591
Area 2.8860823844224E+15
Altitude 70702484.571966

Triangular Pyramid

Length = n
Surface area 2.8860823844224E+15
Volume 6.4127732484332E+22
Height 38485557.94407