28291388 (number)

28291388 is an even 8-digits composite number following 28291387 and preceding 28291389. In scientific notation, it is written as 2.8291388 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 14134512 positive integers (up to 28291388) that are relatively prime to 28291388.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred ninety-one thousand three hundred eighty-eight

Notation

Scientific notation 2.8291388 × 10^7
Engineering notation 2.8291388 × 10^6

Prime Factorization of 28291388

Prime Factorization 2 × 2 × 1933 × 3659

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 14145694
Product of the distinct prime numbers

The prime factorization of 28291388 is 2 × 2 × 1933 × 3659. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 8, 6, 41, 581, 630, 1459, 8846, 23939, 93937, 411632, 330122, 6360693, 1510075, 62404707, 15656323, 748021611, 331066233, 5953221160, 8082457602

Basic calculations (n = 28291388)

Multiplication

n×y
n×2 56582776
n×3 84874164
n×4 113165552
n×5 141456940

Division

n÷y
n÷2 14145694
n÷3 9430462.6666667
n÷3 7072847
n÷5 5658277.6

Exponentiation

ny
n2 800402634966544
n3 2.2644501502061E+22
n4 6.4064437806139E+29
n5 1.8124718669753E+37

Nth Root

y√n
2√n 5318.9649369027
3√n 304.70862794361
4√n 72.931234302613
5√n 30.926505551957

Divisors of 28291388

1, 2, 4, 1933, 3659, 3866, 7318, 7732, 14636, 7072847, 14145694, 28291388

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28291387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28291388 can be divided by 12 positive divisors. The sum of these divisors (counting 28291388) is 1, the average is 0.083333333333333.

Base conversion 28291388

Base System Value
2 Binary 1101011111011000100111100
3 Ternary 1222020100111012
4 Quaternary 1223323010330
5 Quinary 24220311023
6 Senary 2450214352
8 Octal 153730474
10 Decimal 28291388
12 Duodecimal 95843b8
16 Hexadecimal 1afb13c
20 Vigesimal 8gg898
36 Base36 gudrw

Cryptographic Hash Functions

md5 e97c9d4c35b7067f050703a108874be6
sha1 a360a7ef140b35bfd9fb36f240e05c2fea10f0a2
sha256 f780cc0cbccd154bc09e3d1599b45702c479c40b592e18b5c3455b62a792592f
sha512 9b24707a6aa4dd105998e26b2d380e4669df49664a89b554f55324f54dc41193fa6b6c5d3c5a58011b646ff96216a82d523bf453469038b4de8aa24cd455d3db
ripemd-160 c08b5b40373d5937ca6d8d767d0a4b518f1e5c1b

28291388 as geometric shapes

Circle

Radius = n
Diameter 56582776
Circumference 177760033.40132
Area 2.5145390379248E+15

Sphere

Radius = n
Volume 9.4853066084103E+22
Surface area 1.0058156151699E+16
Circumference 177760033.40132

Square

Length = n
Perimeter 113165552
Area 800402634966544
Diagonal 40010064.607959

Cube

Length = n
Surface area 4802415809799264
Volume 2.2644501502061E+22
Space diagonal 49002121.432644

Equilateral Triangle

Length = n
Perimeter 84874164
Area 3.4658450756851E+14
Altitude 24501060.716322

Triangular Pyramid

Length = n
Surface area 3.4658450756851E+14
Volume 2.6686800947827E+21
Height 13336688.202653