28702989 (number)

28702989 is an odd 8-digits composite number following 28702988 and preceding 28702990. In scientific notation, it is written as 2.8702989 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 16401672 positive integers (up to 28702989) that are relatively prime to 28702989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8702989 × 10^7
Engineering notation 2.8702989 × 10^6

Prime Factorization of 28702989

Prime Factorization 3 × 21 × 455603

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28702989
Product of the distinct prime numbers

The prime factorization of 28702989 is 3 × 21 × 455603. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 4, 52, 44, 984, 590, 4153, 435, 3630, 80655, 31943, 941598, 679932, 7752256, 37691981, 98009436, 895419715, 274862919, 4489795914, 3294664066

Basic calculations (n = 28702989)

Multiplication

n×y
n×2 57405978
n×3 86108967
n×4 114811956
n×5 143514945

Division

n÷y
n÷2 14351494.5
n÷3 9567663
n÷3 7175747.25
n÷5 5740597.8

Exponentiation

ny
n2 823861577534121
n3 2.3647289797485E+22
n4 6.7874789893701E+29
n5 1.9482093476962E+37

Nth Root

y√n
2√n 5357.5170555025
3√n 306.17921707186
4√n 73.195061687948
5√n 31.015974069427

Divisors of 28702989

1, 3, 21, 63, 455603, 1366809, 9567663, 28702989

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 -28702988
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 28702989 can be divided by 8 positive divisors. The sum of these divisors (counting 28702989) is 1, the average is 0.125.

Base conversion 28702989

Base System Value
2 Binary 1101101011111100100001101
3 Ternary 2000000021002200
4 Quaternary 1231133210031
5 Quinary 24321443424
6 Senary 2503112113
8 Octal 155374415
10 Decimal 28702989
12 Duodecimal 9742639
16 Hexadecimal 1b5f90d
20 Vigesimal 8j7h99
36 Base36 h37d9

Cryptographic Hash Functions

md5 312c1d87149b21f31ca614a69ecda7f3
sha1 8d222a883a5a8c8bd180e4f3896bc08945e3203c
sha256 29c7826f5e45c6284dd2d071167393a5e3fe59436bcf573a9b6bf812ec8f493e
sha512 50b33a8c85db723f7aca481f3cf8f5eaa339e933dc313548e0782ecc3ba1835912e82bc4d9bfc75dcf7b4fa273bb3d66af8b20faef3516559c9b297a5d603fc8
ripemd-160 c680ded478f2a237a685f5de281445738c3eb214

28702989 as geometric shapes

Circle

Radius = n
Diameter 57405978
Circumference 180346198.75694
Area 2.5882374795561E+15

Sphere

Radius = n
Volume 9.9053535873448E+22
Surface area 1.0352949918224E+16
Circumference 180346198.75694

Square

Length = n
Perimeter 114811956
Area 823861577534121
Diagonal 40592156.324446

Cube

Length = n
Surface area 4943169465204726
Volume 2.3647289797485E+22
Space diagonal 49715035.277091

Equilateral Triangle

Length = n
Perimeter 86108967
Area 3.5674252767324E+14
Altitude 24857517.638545

Triangular Pyramid

Length = n
Surface area 3.5674252767324E+14
Volume 2.7868598287475E+21
Height 13530718.774815