28493887 (number)

28493887 is an odd 8-digits composite number following 28493886 and preceding 28493888. In scientific notation, it is written as 2.8493887 × 10^7. The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors. There are 26817760 positive integers (up to 28493887) that are relatively prime to 28493887.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred ninety-three thousand eight hundred eighty-seven

Notation

Scientific notation 2.8493887 × 10^7
Engineering notation 2.8493887 × 10^6

Prime Factorization of 28493887

Prime Factorization 17 × 1676111

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28493887
Product of the distinct prime numbers

The prime factorization of 28493887 is 17 × 1676111. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 6, 3, 55, 805, 475, 1943, 3586, 45877, 61591, 523191, 892054, 6907799, 7101491, 36272900, 1895472, 62749152, 989836911, 5127007124, 506915181

Basic calculations (n = 28493887)

Multiplication

n×y
n×2 56987774
n×3 85481661
n×4 113975548
n×5 142469435

Division

n÷y
n÷2 14246943.5
n÷3 9497962.3333333
n÷3 7123471.75
n÷5 5698777.4

Exponentiation

ny
n2 811901596368769
n3 2.3134232342051E+22
n4 6.5918420218616E+29
n5 1.8782720169277E+37

Nth Root

y√n
2√n 5337.9665604048
3√n 305.43389646079
4√n 73.061388984913
5√n 30.970651374571

Divisors of 28493887

1, 17, 1676111, 28493887

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28493886
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28493887 can be divided by 4 positive divisors. The sum of these divisors (counting 28493887) is 1, the average is 0.25.

Base conversion 28493887

Base System Value
2 Binary 1101100101100100000111111
3 Ternary 1222121122021011
4 Quaternary 1230230200333
5 Quinary 24243301022
6 Senary 2454420051
8 Octal 154544077
10 Decimal 28493887
12 Duodecimal 9661627
16 Hexadecimal 1b2c83f
20 Vigesimal 8i1ee7
36 Base36 gyq0v

Cryptographic Hash Functions

md5 a0326cd478781b84ba24783f4d836691
sha1 bd469d22bf4f5762f19c3d11125a62f865ab855d
sha256 3f88a0c9bf10a95eeb9c878ae2718d42ed4954de71e4fbdcdaab376b30d05b01
sha512 d8276dbd4be80adfa68f140b5f405d554ec4ffab7a0eaf663a64e9f474e2cfb068d4aba67419329467b784ca7f164fcbf3c54005aa63c573bc34c8e76abd4430
ripemd-160 ea386e4de6fed2fc39426c1d46ad669dec4cfab7

28493887 as geometric shapes

Circle

Radius = n
Diameter 56987774
Circumference 179032372.14284
Area 2.55066409059E+15

Sphere

Radius = n
Volume 9.6904445829637E+22
Surface area 1.020265636236E+16
Circumference 179032372.14284

Square

Length = n
Perimeter 113975548
Area 811901596368769
Diagonal 40296441.440126

Cube

Length = n
Surface area 4871409578212614
Volume 2.3134232342051E+22
Space diagonal 49352859.989126

Equilateral Triangle

Length = n
Perimeter 85481661
Area 3.5156370391425E+14
Altitude 24676429.994563

Triangular Pyramid

Length = n
Surface area 3.5156370391425E+14
Volume 2.7263954277683E+21
Height 13432147.146709