28661840 (number)

28661840 is an even 8-digits composite number following 28661839 and preceding 28661841. In scientific notation, it is written as 2.8661840 × 10^7. The sum of its digits is 35. It has a total of 6 prime factors and 20 positive divisors. There are 11464704 positive integers (up to 28661840) that are relatively prime to 28661840.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred sixty-one thousand eight hundred forty

Notation

Scientific notation 2.8661840 × 10^7
Engineering notation 2.8661840 × 10^6

Prime Factorization of 28661840

Prime Factorization 2 × 2 × 2 × 2 × 5 × 358273

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 3582730
Product of the distinct prime numbers

The prime factorization of 28661840 is 2 × 2 × 2 × 2 × 5 × 358273. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 9, 87, 11, 633, 563, 599, 3282, 87294, 67502, 989894, 265647, 4960177, 378433, 31907171, 2970156, 258526408, 93049243, 7529157856, 1158802509

Basic calculations (n = 28661840)

Multiplication

n×y
n×2 57323680
n×3 85985520
n×4 114647360
n×5 143309200

Division

n÷y
n÷2 14330920
n÷3 9553946.6666667
n÷3 7165460
n÷5 5732368

Exponentiation

ny
n2 821501072185600
n3 2.3545732290812E+22
n4 6.7486401160209E+29
n5 1.9342844322297E+37

Nth Root

y√n
2√n 5353.6753730498
3√n 306.03283285049
4√n 73.168814211041
5√n 31.007075979949

Divisors of 28661840

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358273, 716546, 1433092, 1791365, 2866184, 3582730, 5732368, 7165460, 14330920, 28661840

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28661839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28661840 can be divided by 20 positive divisors. The sum of these divisors (counting 28661840) is 1, the average is 0.05.

Base conversion 28661840

Base System Value
2 Binary 1101101010101100001010000
3 Ternary 1222221011122122
4 Quaternary 1231111201100
5 Quinary 24314134330
6 Senary 2502153412
8 Octal 155254120
10 Decimal 28661840
12 Duodecimal 9722868
16 Hexadecimal 1b55850
20 Vigesimal 8j2ec0
36 Base36 h2bm8

Cryptographic Hash Functions

md5 d2c6de69f68d5374e6788b4b3594a66f
sha1 e1b7d5fcbdadd8594b67a0d0f7305efd4e61c42a
sha256 cc8817d2d2ba8560ee480cde6fcc2407f6ec6b054032c0175035dc387c256953
sha512 6de9dfe0118a391a01e14f7fd9ad79ed7a7bf6845cbaa08a217b5482c691b8233b0ca6343eb2fc26a870f7db837be80f332bd9d834deeeb32db5c132d4120b27
ripemd-160 d11390653a45cc9e6b02802128de27e2fc59a33f

28661840 as geometric shapes

Circle

Radius = n
Diameter 57323680
Circumference 180087651.96473
Area 2.5808217332944E+15

Sphere

Radius = n
Volume 9.8628132784276E+22
Surface area 1.0323286933178E+16
Circumference 180087651.96473

Square

Length = n
Perimeter 114647360
Area 821501072185600
Diagonal 40533962.850568

Cube

Length = n
Surface area 4929006433113600
Volume 2.3545732290812E+22
Space diagonal 49643763.11841

Equilateral Triangle

Length = n
Perimeter 85985520
Area 3.5572039887444E+14
Altitude 24821881.559205

Triangular Pyramid

Length = n
Surface area 3.5572039887444E+14
Volume 2.7748911618061E+21
Height 13511320.950189