28931238 (number)

28931238 is an even 8-digits composite number following 28931237 and preceding 28931239. In scientific notation, it is written as 2.8931238 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 8266032 positive integers (up to 28931238) that are relatively prime to 28931238.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand two hundred thirty-eight

Notation

Scientific notation 2.8931238 × 10^7
Engineering notation 2.8931238 × 10^6

Prime Factorization of 28931238

Prime Factorization 2 × 9 × 7 × 229613

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931238
Product of the distinct prime numbers

The prime factorization of 28931238 is 2 × 9 × 7 × 229613. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 7, 10, 42, 602, 60, 3243, 937, 37933, 35668, 384252, 484810, 4597244, 900599, 95394278, 20581250, 291294679, 115028164, 9524798861, 5187750588

Basic calculations (n = 28931238)

Multiplication

n×y
n×2 57862476
n×3 86793714
n×4 115724952
n×5 144656190

Division

n÷y
n÷2 14465619
n÷3 9643746
n÷3 7232809.5
n÷5 5786247.6

Exponentiation

ny
n2 837016532212644
n3 2.4215924503379E+22
n4 7.0059667519728E+29
n5 2.0269129152141E+37

Nth Root

y√n
2√n 5378.7766267061
3√n 306.9886643595
4√n 73.340143350733
5√n 31.065146325236

Divisors of 28931238

1, 2, 7, 9, 14, 18, 63, 126, 229613, 459226, 1607291, 2066517, 3214582, 4133034, 14465619, 28931238

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 -28931237
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 28931238 can be divided by 16 positive divisors. The sum of these divisors (counting 28931238) is 1, the average is 0.0625.

Base conversion 28931238

Base System Value
2 Binary 1101110010111010010100110
3 Ternary 2000102212012100
4 Quaternary 1232113102212
5 Quinary 24401244423
6 Senary 2512032530
8 Octal 156272246
10 Decimal 28931238
12 Duodecimal 9832746
16 Hexadecimal 1b974a6
20 Vigesimal 90g81i
36 Base36 h83hi

Cryptographic Hash Functions

md5 75ef66f20102acb33e39c2e99f9086bb
sha1 c05a4d16076ca17e809f238b589fab61ed9d6aad
sha256 421e302081f2f08e5f851bcde647a3161f4c5829ed735b56496d3d521493b3e3
sha512 0748ad1407296792e72715e314e00541587316710885d6a3953f1e13f56dc229c7fd7987f21085a2d52a49e90d88bb60be619be47c13b6320162548f51dc4a83
ripemd-160 ba9e997aec0989b1867910931b36455e6957061b

28931238 as geometric shapes

Circle

Radius = n
Diameter 57862476
Circumference 181780329.52012
Area 2.6295649885324E+15

Sphere

Radius = n
Volume 1.014354273596E+23
Surface area 1.051825995413E+16
Circumference 181780329.52012

Square

Length = n
Perimeter 115724952
Area 837016532212644
Diagonal 40914949.155844

Cube

Length = n
Surface area 5022099193275864
Volume 2.4215924503379E+22
Space diagonal 50110374.141867

Equilateral Triangle

Length = n
Perimeter 86793714
Area 3.6243879014185E+14
Altitude 25055187.070934

Triangular Pyramid

Length = n
Surface area 3.6243879014185E+14
Volume 2.8538740715068E+21
Height 13638316.385281