81820005 (number)

81820005 is an odd 8-digits composite number following 81820004 and preceding 81820006. In scientific notation, it is written as 8.1820005 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors. There are 41951040 positive integers (up to 81820005) that are relatively prime to 81820005.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred twenty thousand five

Notation

Scientific notation 8.1820005 × 10^7
Engineering notation 8.1820005 × 10^6

Prime Factorization of 81820005

Prime Factorization 3 × 5 × 31 × 179 × 983

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81820005
Product of the distinct prime numbers

The prime factorization of 81820005 is 3 × 5 × 31 × 179 × 983. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 4, 7, 19, 378, 853, 8119, 8487, 96969, 97149, 221165, 77728, 2039052, 2495398, 8330467, 21178878, 163398563, 132890880, 1587289920, 1577756928

Basic calculations (n = 81820005)

Multiplication

n×y
n×2 163640010
n×3 245460015
n×4 327280020
n×5 409100025

Division

n÷y
n÷2 40910002.5
n÷3 27273335
n÷3 20455001.25
n÷5 16364001

Exponentiation

ny
n2 6694513218200025
n3 5.4774510498569E+23
n4 4.4816507228655E+31
n5 3.6668868455311E+39

Nth Root

y√n
2√n 9045.4411169384
3√n 434.13003564515
4√n 95.107523976489
5√n 38.244756515559

Divisors of 81820005

1, 3, 5, 15, 31, 93, 155, 179, 465, 537, 895, 983, 2685, 2949, 4915, 5549, 14745, 16647, 27745, 30473, 83235, 91419, 152365, 175957, 457095, 527871, 879785, 2639355, 5454667, 16364001, 27273335, 81820005

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81820004
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81820005 can be divided by 32 positive divisors. The sum of these divisors (counting 81820005) is 1, the average is 0.03125.

Base conversion 81820005

Base System Value
2 Binary 100111000000111100101100101
3 Ternary 12200221212221120
4 Quaternary 10320013211211
5 Quinary 131421220010
6 Senary 12041404153
8 Octal 470074545
10 Decimal 81820005
12 Duodecimal 23499659
16 Hexadecimal 4e07965
20 Vigesimal 15b7a05
36 Base36 1cpopx

Cryptographic Hash Functions

md5 2d23fca9b9f653a36c3726d98eeb9ef3
sha1 558c02d916e66bae6a687b654c6b6e90d45d190e
sha256 2d819fdb3055e0b57c6055d98b4d6ce904e190f9a9cbbd1b9b2ad5d700d6c70b
sha512 5692f3aa6bb8a062f8b8332bb3dd4c2c2ad3c21a49eb0a1f8a6dd8d4871ce892e14faab2647b86ea42c4084a777f042408f6dc42278aca4801f6199e33082e13
ripemd-160 a549a664c40eca865f83c35d9c602c6aaf7fcf66

81820005 as geometric shapes

Circle

Radius = n
Diameter 163640010
Circumference 514090253.24936
Area 2.1031433545657E+16

Sphere

Radius = n
Volume 2.2943893304838E+24
Surface area 8.4125734182628E+16
Circumference 514090253.24936

Square

Length = n
Perimeter 327280020
Area 6694513218200025
Diagonal 115710960.74443

Cube

Length = n
Surface area 40167079309200150
Volume 5.4774510498569E+23
Space diagonal 141716405.73554

Equilateral Triangle

Length = n
Perimeter 245460015
Area 2.898809256466E+15
Altitude 70858202.86777

Triangular Pyramid

Length = n
Surface area 2.898809256466E+15
Volume 6.4552379682853E+22
Height 38570320.248145