81220008 (number)

81220008 is an even 8-digits composite number following 81220007 and preceding 81220009. In scientific notation, it is written as 8.1220008 × 10^7. The sum of its digits is 21. It has a total of 6 prime factors and 32 positive divisors. There are 27031680 positive integers (up to 81220008) that are relatively prime to 81220008.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred twenty thousand eight

Notation

Scientific notation 8.1220008 × 10^7
Engineering notation 8.1220008 × 10^6

Prime Factorization of 81220008

Prime Factorization 2 × 2 × 2 × 3 × 761 × 4447

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20305002
Product of the distinct prime numbers

The prime factorization of 81220008 is 2 × 2 × 2 × 3 × 761 × 4447. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 10, 65, 43, 677, 378, 1816, 545, 60268, 1662, 909213, 910443, 9442491, 9230347, 58234281, 50575343, 654042512, 488078356, 9461022459, 4484653534

Basic calculations (n = 81220008)

Multiplication

n×y
n×2 162440016
n×3 243660024
n×4 324880032
n×5 406100040

Division

n÷y
n÷2 40610004
n÷3 27073336
n÷3 20305002
n÷5 16244001.6

Exponentiation

ny
n2 6596689699520064
n3 5.3578319016854E+23
n4 4.3516314991754E+31
n5 3.5343954517608E+39

Nth Root

y√n
2√n 9012.2143782757
3√n 433.06625330508
4√n 94.932683403956
5√n 38.188500480248

Divisors of 81220008

1, 2, 3, 4, 6, 8, 12, 24, 761, 1522, 2283, 3044, 4447, 4566, 6088, 8894, 9132, 13341, 17788, 18264, 26682, 35576, 53364, 106728, 3384167, 6768334, 10152501, 13536668, 20305002, 27073336, 40610004, 81220008

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 -81220007
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 81220008 can be divided by 32 positive divisors. The sum of these divisors (counting 81220008) is 1, the average is 0.03125.

Base conversion 81220008

Base System Value
2 Binary 100110101110101000110101000
3 Ternary 12122211101220110
4 Quaternary 10311311012220
5 Quinary 131243020013
6 Senary 12020454320
8 Octal 465650650
10 Decimal 81220008
12 Duodecimal 2324a3a0
16 Hexadecimal 4d751a8
20 Vigesimal 157ca08
36 Base36 1cctrc

Cryptographic Hash Functions

md5 ccc67ce1505fd9d79ad8c7a7c2d3554c
sha1 1d284b956ce7db596bc6efe33dc3ecba71650068
sha256 92bf22d0c7c79204f0a3a2aa57fd74f59d7af64a93970ac03ad5c1921165f889
sha512 a7c79bb81ecc5f54376476b931b835877adc53c6cfc30a03fec97c2648233a69733a7b66a91537c0525cfb23d7edf8b02a9db871c26bd3421dcb07fa764f701e
ripemd-160 8856e82a4ee31d22c41d822da6cd9a0cd1eb86cd

81220008 as geometric shapes

Circle

Radius = n
Diameter 162440016
Circumference 510320360.91461
Area 2.0724111898024E+16

Sphere

Radius = n
Volume 2.2442833788672E+24
Surface area 8.2896447592095E+16
Circumference 510320360.91461

Square

Length = n
Perimeter 324880032
Area 6596689699520064
Diagonal 114862436.84965

Cube

Length = n
Surface area 39580138197120384
Volume 5.3578319016854E+23
Space diagonal 140677180.44715

Equilateral Triangle

Length = n
Perimeter 243660024
Area 2.8564504303338E+15
Altitude 70338590.223575

Triangular Pyramid

Length = n
Surface area 2.8564504303338E+15
Volume 6.3142654502322E+22
Height 38287478.949884