81444897 (number)

81444897 is an odd 8-digits composite number following 81444896 and preceding 81444898. In scientific notation, it is written as 8.1444897 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 6 positive divisors. There are 54296592 positive integers (up to 81444897) that are relatively prime to 81444897.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-four thousand eight hundred ninety-seven

Notation

Scientific notation 8.1444897 × 10^7
Engineering notation 8.1444897 × 10^6

Prime Factorization of 81444897

Prime Factorization 3 × 3 × 9049433

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 27148299
Product of the distinct prime numbers

The prime factorization of 81444897 is 3 × 3 × 9049433. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81444897)

Multiplication

n×y
n×2 162889794
n×3 244334691
n×4 325779588
n×5 407224485

Division

n÷y
n÷2 40722448.5
n÷3 27148299
n÷3 20361224.25
n÷5 16288979.4

Exponentiation

ny
n2 6633271247340609
n3 5.4024609351272E+23
n4 4.4000287440796E+31
n5 3.583598878586E+39

Nth Root

y√n
2√n 9024.6826537004
3√n 433.46558875648
4√n 94.998329741635
5√n 38.209625022823

Divisors of 81444897

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81444896
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444897 can be divided by 6 positive divisors. The sum of these divisors (counting 81444897) is 1, the average is 0.16666666666667.

Base conversion 81444897

Base System Value
2 Binary 100110110101100000000100001
3 Ternary 12200020211101200
4 Quaternary 10312230000201
5 Quinary 131322214042
6 Senary 12025351413
8 Octal 466540041
10 Decimal 81444897
12 Duodecimal 23338569
16 Hexadecimal 4dac021
20 Vigesimal 1590c4h
36 Base36 1chna9

Cryptographic Hash Functions

md5 29d281b36f64880cc58b9cd85050c045
sha1 d75375bfbf1301dd9807e4c1b8a0439b40f6d0a3
sha256 4417840aa2cf36e7553a56b9832d9643754879fb469c41ed6d7c23aa7a18fe96
sha512 950639930d427790d9ba0c07738d9f048f3419b78505462acc3a2960f3ce3fbb8b81594bb15da954c1fc6a6246270b3eb703fa97d63825493d1f93cf20890aae
ripemd-160 cf39754d64fa1aa0b47f6d76b1ded97b272727f0

81444897 as geometric shapes

Circle

Radius = n
Diameter 162889794
Circumference 511733380.17515
Area 2.0839036219914E+16

Sphere

Radius = n
Volume 2.2629775446802E+24
Surface area 8.3356144879655E+16
Circumference 511733380.17515

Square

Length = n
Perimeter 325779588
Area 6633271247340609
Diagonal 115180477.92348

Cube

Length = n
Surface area 39799627484043654
Volume 5.4024609351272E+23
Space diagonal 141066699.62121

Equilateral Triangle

Length = n
Perimeter 244334691
Area 2.8722907051949E+15
Altitude 70533349.810607

Triangular Pyramid

Length = n
Surface area 2.8722907051949E+15
Volume 6.3668612705397E+22
Height 38393492.64116