28308891 (number)

28308891 is an odd 8-digits composite number following 28308890 and preceding 28308892. In scientific notation, it is written as 2.8308891 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 17375904 positive integers (up to 28308891) that are relatively prime to 28308891.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred eight thousand eight hundred ninety-one

Notation

Scientific notation 2.8308891 × 10^7
Engineering notation 2.8308891 × 10^6

Prime Factorization of 28308891

Prime Factorization 39 × 547 × 1327

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28308891
Product of the distinct prime numbers

The prime factorization of 28308891 is 39 × 547 × 1327. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28308891)

Multiplication

n×y
n×2 56617782
n×3 84926673
n×4 113235564
n×5 141544455

Division

n÷y
n÷2 14154445.5
n÷3 9436297
n÷3 7077222.75
n÷5 5661778.2

Exponentiation

ny
n2 801393309649881
n3 2.2686555851008E+22
n4 6.4223123675159E+29
n5 1.8180854077996E+37

Nth Root

y√n
2√n 5320.6100214167
3√n 304.77145289987
4√n 72.942511756977
5√n 30.930331258356

Divisors of 28308891

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 -28308890
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 28308891 can be divided by 8 positive divisors. The sum of these divisors (counting 28308891) is 1, the average is 0.125.

Base conversion 28308891

Base System Value
2 Binary 1101011111111010110011011
3 Ternary 1222021020111110
4 Quaternary 1223333112123
5 Quinary 24221341031
6 Senary 2450431403
8 Octal 153772633
10 Decimal 28308891
12 Duodecimal 9592563
16 Hexadecimal 1aff59b
20 Vigesimal 8gic4b
36 Base36 gura3

Cryptographic Hash Functions

md5 680332d3a1e6dfcf1f029b614b83644d
sha1 248c02b111223c09d257cafa51b2515356b729ea
sha256 6271df8242f69bd27199fd3c0acaa669a3b81f64a3e9a78483b2b6fda17c21f4
sha512 4d4d77e35bedbac5f5056725c6acce0f4d51d2ee3bedc010d93f722a326ba3addad7cb0998bfeaf874fe1e3a499d854a35284f3667a010da79c2cc304bb55edb
ripemd-160 1b48ef4acf1a8f546b50fc5f1da527fb28444c1b

28308891 as geometric shapes

Circle

Radius = n
Diameter 56617782
Circumference 177870007.99375
Area 2.5176513342321E+15

Sphere

Radius = n
Volume 9.5029222929041E+22
Surface area 1.0070605336928E+16
Circumference 177870007.99375

Square

Length = n
Perimeter 113235564
Area 801393309649881
Diagonal 40034817.587942

Cube

Length = n
Surface area 4808359857899286
Volume 2.2686555851008E+22
Space diagonal 49032437.517929

Equilateral Triangle

Length = n
Perimeter 84926673
Area 3.4701348228984E+14
Altitude 24516218.758965

Triangular Pyramid

Length = n
Surface area 3.4701348228984E+14
Volume 2.6736362473358E+21
Height 13344939.195981