28391105 (number)

28391105 is an odd 8-digits composite number following 28391104 and preceding 28391106. In scientific notation, it is written as 2.8391105 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 21262080 positive integers (up to 28391105) that are relatively prime to 28391105.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred ninety-one thousand one hundred five

Notation

Scientific notation 2.8391105 × 10^7
Engineering notation 2.8391105 × 10^6

Prime Factorization of 28391105

Prime Factorization 17 × 5 × 211 × 1583

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28391105
Product of the distinct prime numbers

The prime factorization of 28391105 is 17 × 5 × 211 × 1583. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 5, 79, 76, 855, 156, 5680, 3841, 9683, 7117, 433197, 251366, 9494989, 8716918, 74146340, 91810051, 311984968, 276611309, 4609658485, 39861524

Basic calculations (n = 28391105)

Multiplication

n×y
n×2 56782210
n×3 85173315
n×4 113564420
n×5 141955525

Division

n÷y
n÷2 14195552.5
n÷3 9463701.6666667
n÷3 7097776.25
n÷5 5678221

Exponentiation

ny
n2 806054843121025
n3 2.2884787686808E+22
n4 6.4972441011886E+29
n5 1.8446393948748E+37

Nth Root

y√n
2√n 5328.3304139289
3√n 305.0662043868
4√n 72.995413649961
5√n 30.948275849489

Divisors of 28391105

1, 5, 17, 85, 211, 1055, 1583, 3587, 7915, 17935, 26911, 134555, 334013, 1670065, 5678221, 28391105

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 -28391104
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 28391105 can be divided by 16 positive divisors. The sum of these divisors (counting 28391105) is 1, the average is 0.0625.

Base conversion 28391105

Base System Value
2 Binary 1101100010011011011000001
3 Ternary 1222102102021102
4 Quaternary 1230103123001
5 Quinary 24232003410
6 Senary 2452304145
8 Octal 154233301
10 Decimal 28391105
12 Duodecimal 9612055
16 Hexadecimal 1b136c1
20 Vigesimal 8h8hf5
36 Base36 gwipt

Cryptographic Hash Functions

md5 0524168fd9b0cdb796273396cfd40ea1
sha1 99eb7cfff5c30268d2a4f7509cab85ae63bcce19
sha256 3ffad314b1b537ea27a1f2fda6b8109a2c21e6a8e335560a54c80487d9cbc520
sha512 f4ae7932d84fac01bfcbb3cf418dc604dcd6eae871dff15d77ca12903bf17f91ae837e39389e5f6bda34ea77c695f250a462e7f82cadf46aafff6fc7237e18a6
ripemd-160 2d21d2423a2e6b98140756f1c3a7b09f85c6075d

28391105 as geometric shapes

Circle

Radius = n
Diameter 56782210
Circumference 178386573.79059
Area 2.5322959735395E+15

Sphere

Radius = n
Volume 9.5859574501116E+22
Surface area 1.0129183894158E+16
Circumference 178386573.79059

Square

Length = n
Perimeter 113564420
Area 806054843121025
Diagonal 40151085.741759

Cube

Length = n
Surface area 4836329058726150
Volume 2.2884787686808E+22
Space diagonal 49174836.343023

Equilateral Triangle

Length = n
Perimeter 85173315
Area 3.4903198549314E+14
Altitude 24587418.171511

Triangular Pyramid

Length = n
Surface area 3.4903198549314E+14
Volume 2.696998093226E+21
Height 13383695.247253