81802008 (number)

81802008 is an even 8-digits composite number following 81802007 and preceding 81802009. In scientific notation, it is written as 8.1802008 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 32 positive divisors. There are 27267264 positive integers (up to 81802008) that are relatively prime to 81802008.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred two thousand eight

Notation

Scientific notation 8.1802008 × 10^7
Engineering notation 8.1802008 × 10^6

Prime Factorization of 81802008

Prime Factorization 2 × 2 × 2 × 3 × 9 × 378713

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20450502
Product of the distinct prime numbers

The prime factorization of 81802008 is 2 × 2 × 2 × 3 × 9 × 378713. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 3, 58, 27, 168, 146, 6806, 3919, 66928, 15970, 581363, 443497, 1657980, 774647, 59211564, 10609940, 768232010, 333976905, 521074539, 8646704094

Basic calculations (n = 81802008)

Multiplication

n×y
n×2 163604016
n×3 245406024
n×4 327208032
n×5 409010040

Division

n÷y
n÷2 40901004
n÷3 27267336
n÷3 20450502
n÷5 16360401.6

Exponentiation

ny
n2 6691568512832064
n3 5.4738374101924E+23
n4 4.4777089161926E+31
n5 3.6628558058405E+39

Nth Root

y√n
2√n 9044.4462517061
3√n 434.09820312379
4√n 95.102293619587
5√n 38.243073916177

Divisors of 81802008

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 378713, 757426, 1136139, 1514852, 2272278, 3029704, 3408417, 4544556, 6816834, 9089112, 10225251, 13633668, 20450502, 27267336, 40901004, 81802008

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 -81802007
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 81802008 can be divided by 32 positive divisors. The sum of these divisors (counting 81802008) is 1, the average is 0.03125.

Base conversion 81802008

Base System Value
2 Binary 100111000000011001100011000
3 Ternary 12200220222021000
4 Quaternary 10320003030120
5 Quinary 131420131013
6 Senary 12041145000
8 Octal 470031430
10 Decimal 81802008
12 Duodecimal 2348b160
16 Hexadecimal 4e03318
20 Vigesimal 15b5508
36 Base36 1cpau0

Cryptographic Hash Functions

md5 2fc41559c818cdc95911c22cc4a13945
sha1 399b8dcccf5c204da39fbe4e33f9fb3bb8c9a40d
sha256 09ac9dd6a8ee666e8988b03b77970a7cc420c7a3e7eae7a6659f5a9f57d11dfb
sha512 31c6e00a25d187b63e76a95e0c7a7fbd9740f60e9fc88d676708033a5bfdb681e9ce9fcfb634c01fc4b0ab516c631d7e83d3676aabeaf41f3ebb1623c9469ebb
ripemd-160 a8da762540d791a25b4fb70d3fdf85fb1d0cb089

81802008 as geometric shapes

Circle

Radius = n
Diameter 163604016
Circumference 513977174.76339
Area 2.1022182480906E+16

Sphere

Radius = n
Volume 2.2928756526407E+24
Surface area 8.4088729923624E+16
Circumference 513977174.76339

Square

Length = n
Perimeter 327208032
Area 6691568512832064
Diagonal 115685509.14295

Cube

Length = n
Surface area 40149411076992384
Volume 5.4738374101924E+23
Space diagonal 141685234.01716

Equilateral Triangle

Length = n
Perimeter 245406024
Area 2.8975341616383E+15
Altitude 70842617.008578

Triangular Pyramid

Length = n
Surface area 2.8975341616383E+15
Volume 6.4509792530994E+22
Height 38561836.380984