28887989 (number)

28887989 is an odd 8-digits composite number following 28887988 and preceding 28887990. In scientific notation, it is written as 2.8887989 × 10^7. The sum of its digits is 59. It has a total of 3 prime factors and 8 positive divisors. There are 26460720 positive integers (up to 28887989) that are relatively prime to 28887989.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred eighty-seven thousand nine hundred eighty-nine

Notation

Scientific notation 2.8887989 × 10^7
Engineering notation 2.8887989 × 10^6

Prime Factorization of 28887989

Prime Factorization 131 × 13 × 16963

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28887989
Product of the distinct prime numbers

The prime factorization of 28887989 is 131 × 13 × 16963. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 1, 67, 858, 693, 3249, 7714, 77930, 98679, 803292, 216536, 5397520, 7533934, 87160205, 79399753, 128365970, 99404780, 2878636509, 5113701369

Basic calculations (n = 28887989)

Multiplication

n×y
n×2 57775978
n×3 86663967
n×4 115551956
n×5 144439945

Division

n÷y
n÷2 14443994.5
n÷3 9629329.6666667
n÷3 7221997.25
n÷5 5777597.8

Exponentiation

ny
n2 834515908464121
n3 2.4107486384037E+22
n4 6.964168014797E+29
n5 2.0118080900561E+37

Nth Root

y√n
2√n 5374.7547851042
3√n 306.83561670788
4√n 73.312719122293
5√n 31.055852975189

Divisors of 28887989

1, 13, 131, 1703, 16963, 220519, 2222153, 28887989

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 -28887988
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 28887989 can be divided by 8 positive divisors. The sum of these divisors (counting 28887989) is 1, the average is 0.125.

Base conversion 28887989

Base System Value
2 Binary 1101110001100101110110101
3 Ternary 2000100122212112
4 Quaternary 1232030232311
5 Quinary 24343403424
6 Senary 2511100405
8 Octal 156145665
10 Decimal 28887989
12 Duodecimal 9811705
16 Hexadecimal 1b8cbb5
20 Vigesimal 90ajj9
36 Base36 h7645

Cryptographic Hash Functions

md5 d2fc0d5c4b3ccab3ebe1cfa8d75e77b9
sha1 64a0da3ee3b5b7ec6100ff66fe4406efa2415237
sha256 330897809361837c887b4056144975cf48b7fc5a60ee8d4837ccedd34a29f444
sha512 b1e7ebe582d698cb2428d28b8e8999b3b8b1da71458cf540bef9de03600e63628628fb3f3d26b75df670f99ed6ac572a73067564f6acc33cd74361d5026b6a5a
ripemd-160 73b7f71684ff133c83d3da302f196edbef4ea8e2

28887989 as geometric shapes

Circle

Radius = n
Diameter 57775978
Circumference 181508588.03877
Area 2.6217090473347E+15

Sphere

Radius = n
Volume 1.0098120282747E+23
Surface area 1.0486836189339E+16
Circumference 181508588.03877

Square

Length = n
Perimeter 115551956
Area 834515908464121
Diagonal 40853785.833485

Cube

Length = n
Surface area 5007095450784726
Volume 2.4107486384037E+22
Space diagonal 50035464.676491

Equilateral Triangle

Length = n
Perimeter 86663967
Area 3.6135598829609E+14
Altitude 25017732.338245

Triangular Pyramid

Length = n
Surface area 3.6135598829609E+14
Volume 2.8410945165858E+21
Height 13617928.611162