28291289 (number)

28291289 is an odd 8-digits composite number following 28291288 and preceding 28291290. In scientific notation, it is written as 2.8291289 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 26115024 positive integers (up to 28291289) that are relatively prime to 28291289.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred ninety-one thousand two hundred eighty-nine

Notation

Scientific notation 2.8291289 × 10^7
Engineering notation 2.8291289 × 10^6

Prime Factorization of 28291289

Prime Factorization 13 × 2176253

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28291289
Product of the distinct prime numbers

The prime factorization of 28291289 is 13 × 2176253. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28291289)

Multiplication

n×y
n×2 56582578
n×3 84873867
n×4 113165156
n×5 141456445

Division

n÷y
n÷2 14145644.5
n÷3 9430429.6666667
n÷3 7072822.25
n÷5 5658257.8

Exponentiation

ny
n2 800397033281521
n3 2.264426378331E+22
n4 6.4063541088586E+29
n5 1.8124401553006E+37

Nth Root

y√n
2√n 5318.9556305726
3√n 304.70827252109
4√n 72.931170500497
5√n 30.926483907714

Divisors of 28291289

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 -28291288
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 28291289 can be divided by 4 positive divisors. The sum of these divisors (counting 28291289) is 1, the average is 0.25.

Base conversion 28291289

Base System Value
2 Binary 1101011111011000011011001
3 Ternary 1222020100100112
4 Quaternary 1223323003121
5 Quinary 24220310124
6 Senary 2450214105
8 Octal 153730331
10 Decimal 28291289
12 Duodecimal 9584335
16 Hexadecimal 1afb0d9
20 Vigesimal 8gg849
36 Base36 gudp5

Cryptographic Hash Functions

md5 d7c1fa4714a34aa6c4d653e70d9cbe59
sha1 4118ac9f9e47d7121a0b0d851a9439d6e6f860f8
sha256 225395d49c1e9e430a097239e4317adcea1ace094f7ade17498fe256f0d157da
sha512 5654282e1420dc1f23dfa858b391d439b492ab9b86075b5cf019d9083a0e9e079df72e380ddf62f60029633a4429a77c4df006319703aa366c61a634992638d1
ripemd-160 f93dd4bea8a16ee637b15f454fb9f84ae7736543

28291289 as geometric shapes

Circle

Radius = n
Diameter 56582578
Circumference 177759411.36597
Area 2.5145214397123E+15

Sphere

Radius = n
Volume 9.4852070330129E+22
Surface area 1.0058085758849E+16
Circumference 177759411.36597

Square

Length = n
Perimeter 113165156
Area 800397033281521
Diagonal 40009924.600817

Cube

Length = n
Surface area 4802382199689126
Volume 2.264426378331E+22
Space diagonal 49001949.959614

Equilateral Triangle

Length = n
Perimeter 84873867
Area 3.4658208196775E+14
Altitude 24500974.979807

Triangular Pyramid

Length = n
Surface area 3.4658208196775E+14
Volume 2.6686520793593E+21
Height 13336641.533606