28689871 (number)

28689871 is an odd 8-digits composite number following 28689870 and preceding 28689872. In scientific notation, it is written as 2.8689871 × 10^7. The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors. There are 24174168 positive integers (up to 28689871) that are relatively prime to 28689871.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred eighty-nine thousand eight hundred seventy-one

Notation

Scientific notation 2.8689871 × 10^7
Engineering notation 2.8689871 × 10^6

Prime Factorization of 28689871

Prime Factorization 413 × 69467

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28689871
Product of the distinct prime numbers

The prime factorization of 28689871 is 413 × 69467. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28689871)

Multiplication

n×y
n×2 57379742
n×3 86069613
n×4 114759484
n×5 143449355

Division

n÷y
n÷2 14344935.5
n÷3 9563290.3333333
n÷3 7172467.75
n÷5 5737974.2

Exponentiation

ny
n2 823108697996641
n3 2.3614882364502E+22
n4 6.7750792871773E+29
n5 1.9437615076389E+37

Nth Root

y√n
2√n 5356.2926544393
3√n 306.13256605351
4√n 73.18669725052
5√n 31.013138532349

Divisors of 28689871

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 -28689870
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 28689871 can be divided by 4 positive divisors. The sum of these divisors (counting 28689871) is 1, the average is 0.25.

Base conversion 28689871

Base System Value
2 Binary 1101101011100010111001111
3 Ternary 1222222121002211
4 Quaternary 1231130113033
5 Quinary 24321033441
6 Senary 2502531251
8 Octal 155342717
10 Decimal 28689871
12 Duodecimal 9736b27
16 Hexadecimal 1b5c5cf
20 Vigesimal 8j64db
36 Base36 h2x8v

Cryptographic Hash Functions

md5 a5aee2640d4cd08a2febd8258ddba4be
sha1 9c4c3173f53288dcfbb01300f47378d22d5f9d71
sha256 7932e2b67f89d61128d3103f35ec654db6e9b4f907669f74f5bc7666a5a24a26
sha512 323adfe2074f668321d08f4f79cbbacf5a2819f773222a2bf57d72946bf8f6c5fe963d4e4607f57adab15e35d9398fe0c7e48b3fca07d8dde6612220ce9fd1fb
ripemd-160 b7f0e54f64feed254ae874cbfd18d99ad5dffb72

28689871 as geometric shapes

Circle

Radius = n
Diameter 57379742
Circumference 180263775.93208
Area 2.5858722387321E+15

Sphere

Radius = n
Volume 9.8917787935607E+22
Surface area 1.0343488954928E+16
Circumference 180263775.93208

Square

Length = n
Perimeter 114759484
Area 823108697996641
Diagonal 40573604.670935

Cube

Length = n
Surface area 4938652187979846
Volume 2.3614882364502E+22
Space diagonal 49692314.234597

Equilateral Triangle

Length = n
Perimeter 86069613
Area 3.5641652127051E+14
Altitude 24846157.117298

Triangular Pyramid

Length = n
Surface area 3.5641652127051E+14
Volume 2.7830405761436E+21
Height 13524534.890312