28931143 (number)

28931143 is an odd 8-digits composite number following 28931142 and preceding 28931144. In scientific notation, it is written as 2.8931143 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 28564848 positive integers (up to 28931143) that are relatively prime to 28931143.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand one hundred forty-three

Notation

Scientific notation 2.8931143 × 10^7
Engineering notation 2.8931143 × 10^6

Prime Factorization of 28931143

Prime Factorization 79 × 366217

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28931143
Product of the distinct prime numbers

The prime factorization of 28931143 is 79 × 366217. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28931143)

Multiplication

n×y
n×2 57862286
n×3 86793429
n×4 115724572
n×5 144655715

Division

n÷y
n÷2 14465571.5
n÷3 9643714.3333333
n÷3 7232785.75
n÷5 5786228.6

Exponentiation

ny
n2 837011035286449
n3 2.421568595445E+22
n4 7.0058747319129E+29
n5 2.0268796370906E+37

Nth Root

y√n
2√n 5378.7677956945
3√n 306.9883283449
4√n 73.340083144857
5√n 31.065125923808

Divisors of 28931143

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931142
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931143 can be divided by 4 positive divisors. The sum of these divisors (counting 28931143) is 1, the average is 0.25.

Base conversion 28931143

Base System Value
2 Binary 1101110010111010001000111
3 Ternary 2000102212001211
4 Quaternary 1232113101013
5 Quinary 24401244033
6 Senary 2512032251
8 Octal 156272107
10 Decimal 28931143
12 Duodecimal 9832687
16 Hexadecimal 1b97447
20 Vigesimal 90g7h3
36 Base36 h83ev

Cryptographic Hash Functions

md5 3fdcb325a048e1da6c8881bbbb4b07af
sha1 ddeee7d37e6a3bee3cb0599915c72692810d39be
sha256 60bf5ec45c15f186c4019ae828babc14eeb2d5fe90bcec744583763328f39664
sha512 f2727cb4e84c978711e043910bf9cbe52377831234875a834a68ed0a2ef7e4ba8bfb9726796bcb8631e3694768a1d27b94ed1e348322d2536e05c61b16c61a99
ripemd-160 33046abac23d52f31e8f33f71b7dab62592e5c73

28931143 as geometric shapes

Circle

Radius = n
Diameter 57862286
Circumference 181779732.61751
Area 2.6295477194295E+15

Sphere

Radius = n
Volume 1.0143442812818E+23
Surface area 1.0518190877718E+16
Circumference 181779732.61751

Square

Length = n
Perimeter 115724572
Area 837011035286449
Diagonal 40914814.805555

Cube

Length = n
Surface area 5022066211718694
Volume 2.421568595445E+22
Space diagonal 50110209.597041

Equilateral Triangle

Length = n
Perimeter 86793429
Area 3.6243640990299E+14
Altitude 25055104.79852

Triangular Pyramid

Length = n
Surface area 3.6243640990299E+14
Volume 2.8538459582459E+21
Height 13638271.601852