28001808 (number)

28001808 is an even 8-digits composite number following 28001807 and preceding 28001809. In scientific notation, it is written as 2.8001808 × 10^7. The sum of its digits is 27. It has a total of 7 prime factors and 40 positive divisors. There are 9150336 positive integers (up to 28001808) that are relatively prime to 28001808.

Interesting facts

Basic properties

Name

Name twenty-eight million one thousand eight hundred eight

Notation

Scientific notation 2.8001808 × 10^7
Engineering notation 2.8001808 × 10^6

Prime Factorization of 28001808

Prime Factorization 2 × 2 × 2 × 2 × 27 × 53 × 1223

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 3500226
Product of the distinct prime numbers

The prime factorization of 28001808 is 2 × 2 × 2 × 2 × 27 × 53 × 1223. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 3, 91, 76, 392, 777, 7018, 1985, 62918, 14224, 985744, 719553, 8656026, 8002581, 39268777, 21928812, 757054861, 24187554, 1270261382, 6177852363

Basic calculations (n = 28001808)

Multiplication

n×y
n×2 56003616
n×3 84005424
n×4 112007232
n×5 140009040

Division

n÷y
n÷2 14000904
n÷3 9333936
n÷3 7000452
n÷5 5600361.6

Exponentiation

ny
n2 784101251268864
n3 2.195625269059E+22
n4 6.148147722414E+29
n5 1.7215925207867E+37

Nth Root

y√n
2√n 5291.6734593132
3√n 303.66543294316
4√n 72.74388949811
5√n 30.862934325629

Divisors of 28001808

1, 2, 4, 8, 16, 27, 53, 54, 106, 108, 212, 216, 424, 432, 848, 1223, 1431, 2446, 2862, 4892, 5724, 9784, 11448, 19568, 22896, 33021, 64819, 66042, 129638, 132084, 259276, 264168, 518552, 528336, 1037104, 1750113, 3500226, 7000452, 14000904, 28001808

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28001807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28001808 can be divided by 40 positive divisors. The sum of these divisors (counting 28001808) is 1, the average is 0.025.

Base conversion 28001808

Base System Value
2 Binary 1101010110100011000010000
3 Ternary 1221200122021000
4 Quaternary 1222310120100
5 Quinary 24132024213
6 Senary 2440102000
8 Octal 152643020
10 Decimal 28001808
12 Duodecimal 9464900
16 Hexadecimal 1ab4610
20 Vigesimal 8f04a8
36 Base36 go6c0

Cryptographic Hash Functions

md5 0e34a1631c48fefa0a4629aa8fa748ff
sha1 b3c2d0b4affe4cfa1ca27bf37f6627d70da35c33
sha256 9214c91291543cd6540df92d6c63c00e77d8b619285b6b725371549283950ad6
sha512 1deca91fc2edb61b375a91b6281266442569f0383700cf4c4cc0880c60726c1c9ea02a47eca4782954a7943b93629b3b0dda83e4b236dd173c96eb2a5b1d6e0b
ripemd-160 de939160e19a4350829949028c8e8dd0b2d56554

28001808 as geometric shapes

Circle

Radius = n
Diameter 56003616
Circumference 175940548.60006
Area 2.4633267306568E+15

Sphere

Radius = n
Volume 9.197013620416E+22
Surface area 9.8533069226273E+15
Circumference 175940548.60006

Square

Length = n
Perimeter 112007232
Area 784101251268864
Diagonal 39600536.644567

Cube

Length = n
Surface area 4704607507613184
Volume 2.195625269059E+22
Space diagonal 48500554.159789

Equilateral Triangle

Length = n
Perimeter 84005424
Area 3.39525801369E+14
Altitude 24250277.079894

Triangular Pyramid

Length = n
Surface area 3.39525801369E+14
Volume 2.5875691944937E+21
Height 13200178.881522