81409428 (number)

81409428 is an even 8-digits composite number following 81409427 and preceding 81409429. In scientific notation, it is written as 8.1409428 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 48 positive divisors. There are 26949024 positive integers (up to 81409428) that are relatively prime to 81409428.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred nine thousand four hundred twenty-eight

Notation

Scientific notation 8.1409428 × 10^7
Engineering notation 8.1409428 × 10^6

Prime Factorization of 81409428

Prime Factorization 2 × 2 × 3 × 9 × 149 × 5059

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40704714
Product of the distinct prime numbers

The prime factorization of 81409428 is 2 × 2 × 3 × 9 × 149 × 5059. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81409428)

Multiplication

n×y
n×2 162818856
n×3 244228284
n×4 325637712
n×5 407047140

Division

n÷y
n÷2 40704714
n÷3 27136476
n÷3 20352357
n÷5 16281885.6

Exponentiation

ny
n2 6627494967287184
n3 5.3954057435973E+23
n4 4.3923689541417E+31
n5 3.5758024412163E+39

Nth Root

y√n
2√n 9022.7173290534
3√n 433.40265531339
4√n 94.987985182619
5√n 38.206296408298

Divisors of 81409428

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 -81409427
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 81409428 can be divided by 48 positive divisors. The sum of these divisors (counting 81409428) is 1, the average is 0.020833333333333.

Base conversion 81409428

Base System Value
2 Binary 100110110100011010110010100
3 Ternary 12200012000202000
4 Quaternary 10312203112110
5 Quinary 131320100203
6 Senary 12024515300
8 Octal 466432624
10 Decimal 81409428
12 Duodecimal 2331bb30
16 Hexadecimal 4da3594
20 Vigesimal 158g3b8
36 Base36 1cgvx0

Cryptographic Hash Functions

md5 47c7cddb54a626da8e9d8ceffb76acab
sha1 650d8d3393970470b88ef8e8bea70faf7b83aad7
sha256 dd6dfe9085fcaa67914ea1b07fdb5a123895d4d026706369bc6fac3399ec7314
sha512 bd3f62a037633ac592fd7c4dd4ddefb79763238428a5a8f8638d21b772032c8707934ddf8d155f9b727a62068d4bfcc4da31522e07c2768439061b2a01d216e5
ripemd-160 b9479d3048d1c0b89392d5a8ccb6bd03444b5e99

81409428 as geometric shapes

Circle

Radius = n
Diameter 162818856
Circumference 511510521.87549
Area 2.0820889500933E+16

Sphere

Radius = n
Volume 2.2600222729629E+24
Surface area 8.3283558003731E+16
Circumference 511510521.87549

Square

Length = n
Perimeter 325637712
Area 6627494967287184
Diagonal 115130317.18264

Cube

Length = n
Surface area 39764969803723104
Volume 5.3954057435973E+23
Space diagonal 141005265.51112

Equilateral Triangle

Length = n
Perimeter 244228284
Area 2.8697895025621E+15
Altitude 70502632.75556

Triangular Pyramid

Length = n
Surface area 2.8697895025621E+15
Volume 6.3585466475841E+22
Height 38376772.394212