28751009 (number)

28751009 is an odd 8-digits composite number following 28751008 and preceding 28751010. In scientific notation, it is written as 2.8751009 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 23346576 positive integers (up to 28751009) that are relatively prime to 28751009.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred fifty-one thousand nine

Notation

Scientific notation 2.8751009 × 10^7
Engineering notation 2.8751009 × 10^6

Prime Factorization of 28751009

Prime Factorization 7 × 19 × 216173

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28751009
Product of the distinct prime numbers

The prime factorization of 28751009 is 7 × 19 × 216173. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28751009)

Multiplication

n×y
n×2 57502018
n×3 86253027
n×4 115004036
n×5 143755045

Division

n÷y
n÷2 14375504.5
n÷3 9583669.6666667
n÷3 7187752.25
n÷5 5750201.8

Exponentiation

ny
n2 826620518518081
n3 2.3766173967498E+22
n4 6.833014816351E+29
n5 1.9645607048204E+37

Nth Root

y√n
2√n 5361.9967362914
3√n 306.34986752704
4√n 73.225656270814
5√n 31.026345054682

Divisors of 28751009

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28751008
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28751009 can be divided by 8 positive divisors. The sum of these divisors (counting 28751009) is 1, the average is 0.125.

Base conversion 28751009

Base System Value
2 Binary 1101101101011010010100001
3 Ternary 2000002200222012
4 Quaternary 1231223102201
5 Quinary 24330013014
6 Senary 2504122305
8 Octal 155532241
10 Decimal 28751009
12 Duodecimal 9766395
16 Hexadecimal 1b6b4a1
20 Vigesimal 8jdha9
36 Base36 h48f5

Cryptographic Hash Functions

md5 fe3078d3d02f7b33f5416d202ecee2b2
sha1 66a8778b98755a6cd9604268b5a8d703e9344910
sha256 d3e236471a58a3866f021e3f98fbcc5645c57e48e6f27a42436168581c27331a
sha512 92d888c72a946c2e4423e0e1463342c88c28d331952e4ec2acc63108fb080460806982b5340530561158546563ccdc6dc617d6200b2bb3d015015455bd31e207
ripemd-160 274cf4afe758430104e6a32733cb31533706a332

28751009 as geometric shapes

Circle

Radius = n
Diameter 57502018
Circumference 180647917.31539
Area 2.596904948283E+15

Sphere

Radius = n
Volume 9.9551516720305E+22
Surface area 1.0387619793132E+16
Circumference 180647917.31539

Square

Length = n
Perimeter 115004036
Area 826620518518081
Diagonal 40660066.859711

Cube

Length = n
Surface area 4959723111108486
Volume 2.3766173967498E+22
Space diagonal 49798208.35687

Equilateral Triangle

Length = n
Perimeter 86253027
Area 3.5793718416306E+14
Altitude 24899104.178435

Triangular Pyramid

Length = n
Surface area 3.5793718416306E+14
Volume 2.8008704625462E+21
Height 13553355.619904