81435420 (number)

81435420 is an even 8-digits composite number following 81435419 and preceding 81435421. In scientific notation, it is written as 8.1435420 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 36 positive divisors. There are 19736640 positive integers (up to 81435420) that are relatively prime to 81435420.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred thirty-five thousand four hundred twenty

Notation

Scientific notation 8.1435420 × 10^7
Engineering notation 8.1435420 × 10^6

Prime Factorization of 81435420

Prime Factorization 2 × 2 × 45 × 11 × 11 × 3739

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 3701610
Product of the distinct prime numbers

The prime factorization of 81435420 is 2 × 2 × 45 × 11 × 11 × 3739. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81435420)

Multiplication

n×y
n×2 162870840
n×3 244306260
n×4 325741680
n×5 407177100

Division

n÷y
n÷2 40717710
n÷3 27145140
n÷3 20358855
n÷5 16287084

Exponentiation

ny
n2 6631727630576400
n3 5.4005752492159E+23
n4 4.397981136615E+31
n5 3.5815144101232E+39

Nth Root

y√n
2√n 9024.1575784114
3√n 433.44877529166
4√n 94.995566098694
5√n 38.208735760302

Divisors of 81435420

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81435419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81435420 can be divided by 36 positive divisors. The sum of these divisors (counting 81435420) is 1, the average is 0.027777777777778.

Base conversion 81435420

Base System Value
2 Binary 100110110101001101100011100
3 Ternary 12200020100101200
4 Quaternary 10312221230130
5 Quinary 131321413140
6 Senary 12025235500
8 Octal 466515434
10 Decimal 81435420
12 Duodecimal 23332b90
16 Hexadecimal 4da9b1c
20 Vigesimal 158j8b0
36 Base36 1chfz0

Cryptographic Hash Functions

md5 796587506364764a9596a61a7fa06e2a
sha1 ebfbbfc494c1c840929a321d97f6cfacf97d35ef
sha256 92bd0b5811c9d30bb870b261dc32b26ca80a2013f28ebef6b54fe65a993123ed
sha512 66ebbbec3b26838cef317978df28bfc9f8e94f23b0ae0134027f6b03784982487c161975110a86de888e1dacc022abd26ba657b7820060bf0dcaf2a431f683c3
ripemd-160 7637520f94793f4c91dfbe1940130ee149c63f04

81435420 as geometric shapes

Circle

Radius = n
Diameter 162870840
Circumference 511673834.428
Area 2.0834186804827E+16

Sphere

Radius = n
Volume 2.2621876704128E+24
Surface area 8.3336747219309E+16
Circumference 511673834.428

Square

Length = n
Perimeter 325741680
Area 6631727630576400
Diagonal 115167075.42155

Cube

Length = n
Surface area 39790365783458400
Volume 5.4005752492159E+23
Space diagonal 141050284.97571

Equilateral Triangle

Length = n
Perimeter 244306260
Area 2.8716222995292E+15
Altitude 70525142.487855

Triangular Pyramid

Length = n
Surface area 2.8716222995292E+15
Volume 6.3646389683814E+22
Height 38389025.140516