81444810 (number)

81444810 is an even 8-digits composite number following 81444809 and preceding 81444811. In scientific notation, it is written as 8.1444810 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 21412160 positive integers (up to 81444810) that are relatively prime to 81444810.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-four thousand eight hundred ten

Notation

Scientific notation 8.1444810 × 10^7
Engineering notation 8.1444810 × 10^6

Prime Factorization of 81444810

Prime Factorization 2 × 15 × 71 × 38237

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81444810
Product of the distinct prime numbers

The prime factorization of 81444810 is 2 × 15 × 71 × 38237. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 49, 89, 23, 315, 8335, 3956, 25099, 73388, 755067, 326185, 8420879, 6520735, 2505078, 97718539, 975248300, 769004743, 8461978628, 5041151783

Basic calculations (n = 81444810)

Multiplication

n×y
n×2 162889620
n×3 244334430
n×4 325779240
n×5 407224050

Division

n÷y
n÷2 40722405
n÷3 27148270
n÷3 20361202.5
n÷5 16288962

Exponentiation

ny
n2 6633257075936100
n3 5.4024436223077E+23
n4 4.4000099435456E+31
n5 3.5835797385018E+39

Nth Root

y√n
2√n 9024.677833585
3√n 433.46543441278
4√n 94.998304372157
5√n 38.209616859662

Divisors of 81444810

1, 2, 15, 30, 71, 142, 1065, 2130, 38237, 76474, 573555, 1147110, 2714827, 5429654, 40722405, 81444810

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81444809
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444810 can be divided by 16 positive divisors. The sum of these divisors (counting 81444810) is 1, the average is 0.0625.

Base conversion 81444810

Base System Value
2 Binary 100110110101011111111001010
3 Ternary 12200020211021110
4 Quaternary 10312223333022
5 Quinary 131322213220
6 Senary 12025351150
8 Octal 466537712
10 Decimal 81444810
12 Duodecimal 233384b6
16 Hexadecimal 4dabfca
20 Vigesimal 1590c0a
36 Base36 1chn7u

Cryptographic Hash Functions

md5 b37cde17c16cb43250e0dd956a39261a
sha1 0902bf1b6e0b0d70138e9eaa0213ca4af2a5e152
sha256 b7043e707f1eb435512bdce19afb9ee548cf529668c6ca4a0c1e1f35099eb6bd
sha512 c5ad85b826853b376246ad8acda5d3fc9771092b57d9da1698606e9294b3dec1fa8aa3dab7824f8987ee33d46e860808fbd887cb289190fe32d6f6a1ea8c19ab
ripemd-160 42bde4bfdb8edbfaba8cd8a97f44f7272fdb159f

81444810 as geometric shapes

Circle

Radius = n
Diameter 162889620
Circumference 511732833.53803
Area 2.0838991699133E+16

Sphere

Radius = n
Volume 2.2629702927033E+24
Surface area 8.3355966796533E+16
Circumference 511732833.53803

Square

Length = n
Perimeter 325779240
Area 6633257075936100
Diagonal 115180354.8869

Cube

Length = n
Surface area 39799542455616600
Volume 5.4024436223077E+23
Space diagonal 141066548.93279

Equilateral Triangle

Length = n
Perimeter 244334430
Area 2.8722845687968E+15
Altitude 70533274.466397

Triangular Pyramid

Length = n
Surface area 2.8722845687968E+15
Volume 6.3668408671863E+22
Height 38393451.628967