81682018 (number)

81682018 is an even 8-digits composite number following 81682017 and preceding 81682019. In scientific notation, it is written as 8.1682018 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 37128080 positive integers (up to 81682018) that are relatively prime to 81682018.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1682018 × 10^7
Engineering notation 8.1682018 × 10^6

Prime Factorization of 81682018

Prime Factorization 2 × 11 × 11 × 337529

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7425638
Product of the distinct prime numbers

The prime factorization of 81682018 is 2 × 11 × 11 × 337529. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 1, 31, 94, 269, 461, 8002, 5020, 16698, 47776, 864214, 122213, 8382986, 7608425, 13770287, 26944242, 971297707, 483289279, 9965072224, 5624017938

Basic calculations (n = 81682018)

Multiplication

n×y
n×2 163364036
n×3 245046054
n×4 326728072
n×5 408410090

Division

n÷y
n÷2 40841009
n÷3 27227339.333333
n÷3 20420504.5
n÷5 16336403.6

Exponentiation

ny
n2 6671952064552324
n3 5.449785086319E+23
n4 4.4514944351684E+31
n5 3.6360704858033E+39

Nth Root

y√n
2√n 9037.8104649301
3√n 433.88584920027
4√n 95.067399590659
5√n 38.231848076325

Divisors of 81682018

1, 2, 11, 22, 121, 242, 337529, 675058, 3712819, 7425638, 40841009, 81682018

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81682017
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81682018 can be divided by 12 positive divisors. The sum of these divisors (counting 81682018) is 1, the average is 0.083333333333333.

Base conversion 81682018

Base System Value
2 Binary 100110111100101111001100010
3 Ternary 12200200212122221
4 Quaternary 10313211321202
5 Quinary 131402311033
6 Senary 12034421254
8 Octal 467457142
10 Decimal 81682018
12 Duodecimal 2343182a
16 Hexadecimal 4de5e62
20 Vigesimal 15aa50i
36 Base36 1cmq8y

Cryptographic Hash Functions

md5 eabf35164b2f8c424a3d372b0c466713
sha1 d02e13a87dc42f52771f4e290a5f04d770dd66ba
sha256 2b12a6716c3953cb85b37a1021a0a73a3af672edcfe9e9b80e13c1d1042ea0c1
sha512 f4d8a179161698434f2c1ff7025c04a910061509ca6aedd025d64d969165d447730f7b3fed9e25f303cad3ef9b9bf7955a5c7c0aee0ba40c6a4ab6c860e0f713
ripemd-160 dda1598b51d38c5ca2a01b814767ed659c30a72f

81682018 as geometric shapes

Circle

Radius = n
Diameter 163364036
Circumference 513223255.35838
Area 2.0960555591101E+16

Sphere

Radius = n
Volume 2.2828006387764E+24
Surface area 8.3842222364403E+16
Circumference 513223255.35838

Square

Length = n
Perimeter 326728072
Area 6671952064552324
Diagonal 115515817.6576

Cube

Length = n
Surface area 40031712387313944
Volume 5.449785086319E+23
Space diagonal 141477405.24076

Equilateral Triangle

Length = n
Perimeter 245046054
Area 2.8890399903672E+15
Altitude 70738702.620378

Triangular Pyramid

Length = n
Surface area 2.8890399903672E+15
Volume 6.4226333175758E+22
Height 38505272.552534