81444609 (number)

81444609 is an odd 8-digits composite number following 81444608 and preceding 81444610. In scientific notation, it is written as 8.1444609 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 54295920 positive integers (up to 81444609) that are relatively prime to 81444609.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1444609 × 10^7
Engineering notation 8.1444609 × 10^6

Prime Factorization of 81444609

Prime Factorization 3 × 3 × 81 × 111721

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 27148203
Product of the distinct prime numbers

The prime factorization of 81444609 is 3 × 3 × 81 × 111721. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 30, 15, 690, 364, 6169, 5032, 94213, 13097, 556075, 668208, 930645, 2689049, 94858460, 758682, 610115373, 458846722, 3289797142, 6280488227

Basic calculations (n = 81444609)

Multiplication

n×y
n×2 162889218
n×3 244333827
n×4 325778436
n×5 407223045

Division

n÷y
n÷2 40722304.5
n÷3 27148203
n÷3 20361152.25
n÷5 16288921.8

Exponentiation

ny
n2 6633224335162881
n3 5.4024036238663E+23
n4 4.3999665080597E+31
n5 3.5835355186202E+39

Nth Root

y√n
2√n 9024.6666974465
3√n 433.46507782519
4√n 94.998245759838
5√n 38.20959799992

Divisors of 81444609

1, 3, 9, 81, 243, 729, 111721, 335163, 1005489, 9049401, 27148203, 81444609

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 -81444608
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 81444609 can be divided by 12 positive divisors. The sum of these divisors (counting 81444609) is 1, the average is 0.083333333333333.

Base conversion 81444609

Base System Value
2 Binary 100110110101011111100000001
3 Ternary 12200020211000000
4 Quaternary 10312223330001
5 Quinary 131322211414
6 Senary 12025350213
8 Octal 466537401
10 Decimal 81444609
12 Duodecimal 23338369
16 Hexadecimal 4dabf01
20 Vigesimal 1590ba9
36 Base36 1chn29

Cryptographic Hash Functions

md5 134820386f56bf68af5bd2a8c6deca01
sha1 509555cbfb6a24b992bb82db56f74ffaf9a08080
sha256 3790bbef649fdd65b20cfdd4000052bbeb204eb7af7166f44f78d2902e8dee26
sha512 8cd23a74060a2f64eadf7f71e5f19c9208b444fc412ef118fbb04f0f57a911ae10825959abfc48c8061fc50e8a08c7f950c60d42ad6d6412410a8e029c8c7146
ripemd-160 52d796d940d97c4f03d29870bdddf7c11a5235ee

81444609 as geometric shapes

Circle

Radius = n
Diameter 162889218
Circumference 511731570.61779
Area 2.0838888840961E+16

Sphere

Radius = n
Volume 2.2629535381953E+24
Surface area 8.3355555363843E+16
Circumference 511731570.61779

Square

Length = n
Perimeter 325778436
Area 6633224335162881
Diagonal 115180070.62997

Cube

Length = n
Surface area 39799346010977286
Volume 5.4024036238663E+23
Space diagonal 141066200.79058

Equilateral Triangle

Length = n
Perimeter 244333827
Area 2.8722703916261E+15
Altitude 70533100.395291

Triangular Pyramid

Length = n
Surface area 2.8722703916261E+15
Volume 6.366793728571E+22
Height 38393356.876658