28931265 (number)

28931265 is an odd 8-digits composite number following 28931264 and preceding 28931266. In scientific notation, it is written as 2.8931265 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 13910400 positive integers (up to 28931265) that are relatively prime to 28931265.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand two hundred sixty-five

Notation

Scientific notation 2.8931265 × 10^7
Engineering notation 2.8931265 × 10^6

Prime Factorization of 28931265

Prime Factorization 15 × 3 × 11 × 211 × 277

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28931265
Product of the distinct prime numbers

The prime factorization of 28931265 is 15 × 3 × 11 × 211 × 277. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 9, 63, 25, 404, 74, 7174, 3667, 64524, 35746, 309748, 811537, 7365157, 1857071, 61883842, 61058260, 645678726, 930241330, 9297361865, 1587736179

Basic calculations (n = 28931265)

Multiplication

n×y
n×2 57862530
n×3 86793795
n×4 115725060
n×5 144656325

Division

n÷y
n÷2 14465632.5
n÷3 9643755
n÷3 7232816.25
n÷5 5786253

Exponentiation

ny
n2 837018094500225
n3 2.4215992301781E+22
n4 7.0059929052079E+29
n5 2.0269223732869E+37

Nth Root

y√n
2√n 5378.7791365699
3√n 306.98875985825
4√n 73.34016046185
5√n 31.065152123527

Divisors of 28931265

1, 3, 11, 15, 33, 45, 165, 211, 277, 495, 633, 831, 2321, 3047, 3165, 4155, 6963, 9141, 9495, 12465, 34815, 45705, 58447, 104445, 137115, 175341, 642917, 876705, 1928751, 2630115, 9643755, 28931265

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931264
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931265 can be divided by 32 positive divisors. The sum of these divisors (counting 28931265) is 1, the average is 0.03125.

Base conversion 28931265

Base System Value
2 Binary 1101110010111010011000001
3 Ternary 2000102212020100
4 Quaternary 1232113103001
5 Quinary 24401300030
6 Senary 2512033013
8 Octal 156272301
10 Decimal 28931265
12 Duodecimal 9832769
16 Hexadecimal 1b974c1
20 Vigesimal 90g835
36 Base36 h83i9

Cryptographic Hash Functions

md5 d88c3cdb77284edd1aebcfc24a52b11f
sha1 38b0b608d3c4630af59d13ef7d5037441776e852
sha256 c537a63ae1f709dac940b499b0b6bcab9f4e1ade526eae204ea9d0856089cd59
sha512 d3b5c375687f97b641aae2863ff9078e9d6d845e61a674c4816785b850360021791cd1aad3104661cd0fa62e175281569c16255da5658898a687574ddad1619d
ripemd-160 fe020aace8dc3d82094f22eb5418cc577d046c7c

28931265 as geometric shapes

Circle

Radius = n
Diameter 57862530
Circumference 181780499.16612
Area 2.6295698966036E+15

Sphere

Radius = n
Volume 1.0143571135288E+23
Surface area 1.0518279586415E+16
Circumference 181780499.16612

Square

Length = n
Perimeter 115725060
Area 837018094500225
Diagonal 40914987.33961

Cube

Length = n
Surface area 5022108567001350
Volume 2.4215992301781E+22
Space diagonal 50110420.907239

Equilateral Triangle

Length = n
Perimeter 86793795
Area 3.6243946663222E+14
Altitude 25055210.45362

Triangular Pyramid

Length = n
Surface area 3.6243946663222E+14
Volume 2.8538820616251E+21
Height 13638329.113203