28438985 (number)

28438985 is an odd 8-digits composite number following 28438984 and preceding 28438986. In scientific notation, it is written as 2.8438985 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 22722480 positive integers (up to 28438985) that are relatively prime to 28438985.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred thirty-eight thousand nine hundred eighty-five

Notation

Scientific notation 2.8438985 × 10^7
Engineering notation 2.8438985 × 10^6

Prime Factorization of 28438985

Prime Factorization 5 × 907 × 6271

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28438985
Product of the distinct prime numbers

The prime factorization of 28438985 is 5 × 907 × 6271. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 1, 48, 86, 714, 136, 8906, 7938, 26232, 721, 324663, 612691, 4100803, 973438, 46726555, 70001595, 647650115, 40299649, 7547345779, 4786598795

Basic calculations (n = 28438985)

Multiplication

n×y
n×2 56877970
n×3 85316955
n×4 113755940
n×5 142194925

Division

n÷y
n÷2 14219492.5
n÷3 9479661.6666667
n÷3 7109746.25
n÷5 5687797

Exponentiation

ny
n2 808775867830225
n3 2.3000764773586E+22
n4 6.5411840438453E+29
n5 1.8602463490516E+37

Nth Root

y√n
2√n 5332.8214858553
3√n 305.23760039854
4√n 73.026169869817
5√n 30.958707319956

Divisors of 28438985

1, 5, 907, 4535, 6271, 31355, 5687797, 28438985

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 -28438984
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 28438985 can be divided by 8 positive divisors. The sum of these divisors (counting 28438985) is 1, the average is 0.125.

Base conversion 28438985

Base System Value
2 Binary 1101100011111000111001001
3 Ternary 1222111211221202
4 Quaternary 1230133013021
5 Quinary 24240021420
6 Senary 2453313545
8 Octal 154370711
10 Decimal 28438985
12 Duodecimal 96358b5
16 Hexadecimal 1b1f1c9
20 Vigesimal 8heh95
36 Base36 gxjnt

Cryptographic Hash Functions

md5 cb00d995082967fd40daaec7a736d6ac
sha1 0aa37d2fce617f1d782b05beee497d4b0e6b197d
sha256 e3b0334cb3b6ac45a6f96e2d44543ec603674a459aaee5d2d34a971d67373395
sha512 da146c840c783b0f678dafb9cb1bae4b79dad678385004c19c0ad650d193ee076fcc2e968fb338b2c6acf097073d966e9fd592e2387f330477121b8556bb4692
ripemd-160 6bc2cc0df6aacb85835d1d3464e4c6d2d967dd0e

28438985 as geometric shapes

Circle

Radius = n
Diameter 56877970
Circumference 178687412.7031
Area 2.5408443247761E+15

Sphere

Radius = n
Volume 9.6345378186192E+22
Surface area 1.0163377299105E+16
Circumference 178687412.7031

Square

Length = n
Perimeter 113755940
Area 808775867830225
Diagonal 40218798.287125

Cube

Length = n
Surface area 4852655206981350
Volume 2.3000764773586E+22
Space diagonal 49257766.935689

Equilateral Triangle

Length = n
Perimeter 85316955
Area 3.5021022375439E+14
Altitude 24628883.467845

Triangular Pyramid

Length = n
Surface area 3.5021022375439E+14
Volume 2.7106661239799E+21
Height 13406266.095708