28685890 (number)

28685890 is an even 8-digits composite number following 28685889 and preceding 28685891. In scientific notation, it is written as 2.8685890 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 11447424 positive integers (up to 28685890) that are relatively prime to 28685890.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred eighty-five thousand eight hundred ninety

Notation

Scientific notation 2.8685890 × 10^7
Engineering notation 2.8685890 × 10^6

Prime Factorization of 28685890

Prime Factorization 2 × 5 × 457 × 6277

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28685890
Product of the distinct prime numbers

The prime factorization of 28685890 is 2 × 5 × 457 × 6277. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 7, 84, 27, 12, 872, 9787, 5258, 78066, 83792, 408829, 469736, 3770507, 6216205, 65067523, 45036392, 571068221, 992367908, 5245460643, 1098691326

Basic calculations (n = 28685890)

Multiplication

n×y
n×2 57371780
n×3 86057670
n×4 114743560
n×5 143429450

Division

n÷y
n÷2 14342945
n÷3 9561963.3333333
n÷3 7171472.5
n÷5 5737178

Exponentiation

ny
n2 822880285092100
n3 2.3605053341321E+22
n4 6.7713196359326E+29
n5 1.942413302312E+37

Nth Root

y√n
2√n 5355.9210225693
3√n 306.11840577003
4√n 73.184158276018
5√n 31.012277809359

Divisors of 28685890

1, 2, 5, 10, 457, 914, 2285, 4570, 6277, 12554, 31385, 62770, 2868589, 5737178, 14342945, 28685890

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28685889
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28685890 can be divided by 16 positive divisors. The sum of these divisors (counting 28685890) is 1, the average is 0.0625.

Base conversion 28685890

Base System Value
2 Binary 1101101011011011001000010
3 Ternary 1222222101122101
4 Quaternary 1231123121002
5 Quinary 24320422030
6 Senary 2502501014
8 Octal 155333102
10 Decimal 28685890
12 Duodecimal 973476a
16 Hexadecimal 1b5b642
20 Vigesimal 8j5eea
36 Base36 h2u6a

Cryptographic Hash Functions

md5 8d9b4938cf9a812832bfa4bae283101d
sha1 50ac82e319c5d825f718e1e3e17251c07a985162
sha256 fd0af2a7b2bed825d245a65b6240a99c9449bdc291856aee0c9ea0ea60b0a8f1
sha512 8ec88793122eda718d987092b0001dda06a4d0fd03ca596cc07804b4558005af76fdbc41289fa8862b68b3c5db4411b9bd083ece329927a87cadf314110f0412
ripemd-160 d3a34c2a64a316b3ce67b0329a9b08148d4e251e

28685890 as geometric shapes

Circle

Radius = n
Diameter 57371780
Circumference 180238762.57137
Area 2.5851546584292E+15

Sphere

Radius = n
Volume 9.8876616219584E+22
Surface area 1.0340618633717E+16
Circumference 180238762.57137

Square

Length = n
Perimeter 114743560
Area 822880285092100
Diagonal 40567974.686743

Cube

Length = n
Surface area 4937281710552600
Volume 2.3605053341321E+22
Space diagonal 49685418.940332

Equilateral Triangle

Length = n
Perimeter 86057670
Area 3.5631761558157E+14
Altitude 24842709.470166

Triangular Pyramid

Length = n
Surface area 3.5631761558157E+14
Volume 2.781882214653E+21
Height 13522658.228914