81640118 (number)

81640118 is an even 8-digits composite number following 81640117 and preceding 81640119. In scientific notation, it is written as 8.1640118 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 34641600 positive integers (up to 81640118) that are relatively prime to 81640118.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty thousand one hundred eighteen

Notation

Scientific notation 8.1640118 × 10^7
Engineering notation 8.1640118 × 10^6

Prime Factorization of 81640118

Prime Factorization 2 × 7 × 101 × 57737

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81640118
Product of the distinct prime numbers

The prime factorization of 81640118 is 2 × 7 × 101 × 57737. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 4, 29, 61, 466, 948, 6790, 8605, 93342, 94570, 121823, 25745, 4031490, 996725, 91148735, 35788181, 445728343, 938878117, 1421852886, 577109181

Basic calculations (n = 81640118)

Multiplication

n×y
n×2 163280236
n×3 244920354
n×4 326560472
n×5 408200590

Division

n÷y
n÷2 40820059
n÷3 27213372.666667
n÷3 20410029.5
n÷5 16328023.6

Exponentiation

ny
n2 6665108867053924
n3 5.4414027438913E+23
n4 4.4423676209681E+31
n5 3.6267541677521E+39

Nth Root

y√n
2√n 9035.4921282684
3√n 433.8116471219
4√n 95.055205687371
5√n 38.227924952815

Divisors of 81640118

1, 2, 7, 14, 101, 202, 707, 1414, 57737, 115474, 404159, 808318, 5831437, 11662874, 40820059, 81640118

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 -81640117
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 81640118 can be divided by 16 positive divisors. The sum of these divisors (counting 81640118) is 1, the average is 0.0625.

Base conversion 81640118

Base System Value
2 Binary 100110111011011101010110110
3 Ternary 12200121202012002
4 Quaternary 10313123222312
5 Quinary 131344440433
6 Senary 12033455302
8 Octal 467335266
10 Decimal 81640118
12 Duodecimal 23411532
16 Hexadecimal 4ddbab6
20 Vigesimal 15a505i
36 Base36 1cltx2

Cryptographic Hash Functions

md5 bdba2d1290de4bdc8c70e0fc0b486edf
sha1 61dc75f3c6d2faf03cab30eabd00cfd291a48802
sha256 ae84fab25ccac4b05bef7e6f260d0173133b143a363e3af1767c0934f7c70a49
sha512 8d9ffffb8f30a397135d7490d77a52d34d1c475c0cb45a08567f59eb9dcfb9b1dd43a3787aaca43321a07c38f189c6440943d13ae72d6f1c8c44b333f0e18808
ripemd-160 4a2f9573f4414734fe368ce709f708d871d31b59

81640118 as geometric shapes

Circle

Radius = n
Diameter 163280236
Circumference 512959989.89401
Area 2.0939057052113E+16

Sphere

Radius = n
Volume 2.279289451391E+24
Surface area 8.3756228208451E+16
Circumference 512959989.89401

Square

Length = n
Perimeter 326560472
Area 6665108867053924
Diagonal 115456562.10934

Cube

Length = n
Surface area 39990653202323544
Volume 5.4414027438913E+23
Space diagonal 141404832.31192

Equilateral Triangle

Length = n
Perimeter 244920354
Area 2.8860767989288E+15
Altitude 70702416.155959

Triangular Pyramid

Length = n
Surface area 2.8860767989288E+15
Volume 6.4127546322877E+22
Height 38485520.703113