81444146 (number)

81444146 is an even 8-digits composite number following 81444145 and preceding 81444147. In scientific notation, it is written as 8.1444146 × 10^7. The sum of its digits is 32. It has a total of 6 prime factors and 48 positive divisors. There are 32145984 positive integers (up to 81444146) that are relatively prime to 81444146.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1444146 × 10^7
Engineering notation 8.1444146 × 10^6

Prime Factorization of 81444146

Prime Factorization 2 × 19 × 7 × 53 × 53 × 109

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 1536682
Product of the distinct prime numbers

The prime factorization of 81444146 is 2 × 19 × 7 × 53 × 53 × 109. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81444146)

Multiplication

n×y
n×2 162888292
n×3 244332438
n×4 325776584
n×5 407220730

Division

n÷y
n÷2 40722073
n÷3 27148048.666667
n÷3 20361036.5
n÷5 16288829.2

Exponentiation

ny
n2 6633148917669316
n3 5.402311488904E+23
n4 4.3998664563978E+31
n5 3.5834336605536E+39

Nth Root

y√n
2√n 9024.6410454932
3√n 433.46425642967
4√n 94.998110746968
5√n 38.209554556691

Divisors of 81444146

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81444145
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444146 can be divided by 48 positive divisors. The sum of these divisors (counting 81444146) is 1, the average is 0.020833333333333.

Base conversion 81444146

Base System Value
2 Binary 100110110101011110100110010
3 Ternary 12200020210100212
4 Quaternary 10312223310302
5 Quinary 131322203041
6 Senary 12025344122
8 Octal 466536462
10 Decimal 81444146
12 Duodecimal 23338042
16 Hexadecimal 4dabd32
20 Vigesimal 1590a76
36 Base36 1chmpe

Cryptographic Hash Functions

md5 dcde44971cccc945a601f460c6a96d7a
sha1 13bc8606786cd78c2a340f6ba6da1bb3db36ace5
sha256 1b455485424bcf9426307e24c6cd9a22d2e2735419ff92ed52a0183012c66835
sha512 f32088c983798d16b5c9c2b6c94c41f8b36349dd9097c01ce0f4790423724335ab289ff8db3a72f40b81eb01f281e976e06aaee5cd20968af18034896e971a60
ripemd-160 18c28211332292c0ea911f9e59d5e5322ab01a27

81444146 as geometric shapes

Circle

Radius = n
Diameter 162888292
Circumference 511728661.50299
Area 2.0838651909917E+16

Sphere

Radius = n
Volume 2.2629149447926E+24
Surface area 8.3354607639668E+16
Circumference 511728661.50299

Square

Length = n
Perimeter 325776584
Area 6633148917669316
Diagonal 115179415.84909

Cube

Length = n
Surface area 39798893506015896
Volume 5.402311488904E+23
Space diagonal 141065398.85106

Equilateral Triangle

Length = n
Perimeter 244332438
Area 2.8722377348934E+15
Altitude 70532699.425529

Triangular Pyramid

Length = n
Surface area 2.8722377348934E+15
Volume 6.3666851464767E+22
Height 38393138.616365