28239728 (number)

28239728 is an even 8-digits composite number following 28239727 and preceding 28239729. In scientific notation, it is written as 2.8239728 × 10^7. The sum of its digits is 41. It has a total of 6 prime factors and 20 positive divisors. There are 12836160 positive integers (up to 28239728) that are relatively prime to 28239728.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8239728 × 10^7
Engineering notation 2.8239728 × 10^6

Prime Factorization of 28239728

Prime Factorization 2 × 2 × 2 × 2 × 11 × 160453

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 3529966
Product of the distinct prime numbers

The prime factorization of 28239728 is 2 × 2 × 2 × 2 × 11 × 160453. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 8, 42, 88, 583, 95, 9219, 4347, 6475, 36798, 156922, 595082, 6936730, 9119999, 47560631, 81744789, 407812486, 151841308, 5550267755, 5436181278

Basic calculations (n = 28239728)

Multiplication

n×y
n×2 56479456
n×3 84719184
n×4 112958912
n×5 141198640

Division

n÷y
n÷2 14119864
n÷3 9413242.6666667
n÷3 7059932
n÷5 5647945.6

Exponentiation

ny
n2 797482237513984
n3 2.2520681472226E+22
n4 6.3597791915031E+29
n5 1.7959843450811E+37

Nth Root

y√n
2√n 5314.1065100353
3√n 304.52304922487
4√n 72.897918420455
5√n 30.915202949988

Divisors of 28239728

1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 160453, 320906, 641812, 1283624, 1764983, 2567248, 3529966, 7059932, 14119864, 28239728

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28239727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28239728 can be divided by 20 positive divisors. The sum of these divisors (counting 28239728) is 1, the average is 0.05.

Base conversion 28239728

Base System Value
2 Binary 1101011101110011101110000
3 Ternary 1222010201121212
4 Quaternary 1223232131300
5 Quinary 24212132403
6 Senary 2445135252
8 Octal 153563560
10 Decimal 28239728
12 Duodecimal 955a528
16 Hexadecimal 1aee770
20 Vigesimal 8g9j68
36 Base36 gt9ww

Cryptographic Hash Functions

md5 6a2188b76709e20417cd08f3fe6dab87
sha1 fff28c1341c855aecb38fe63c3c781eddd68db92
sha256 173174f65986aa86d9f22a5f7d3ba617d5ee033c2cc1e2a3744811fac452320b
sha512 f3e16ed20542b263ed6322fc45284eb204bf40d2b4ea70059a2bfec55d3107e66a3cdfa248e9286ddbca67bbc9a8babe6c44f19be46b0b590e7b05161bc772c3
ripemd-160 29254e258a8935e033643f6fb98418b7b3b161e7

28239728 as geometric shapes

Circle

Radius = n
Diameter 56479456
Circumference 177435444.04835
Area 2.5053643387423E+15

Sphere

Radius = n
Volume 9.4334409955976E+22
Surface area 1.0021457354969E+16
Circumference 177435444.04835

Square

Length = n
Perimeter 112958912
Area 797482237513984
Diagonal 39937006.335327

Cube

Length = n
Surface area 4784893425083904
Volume 2.2520681472226E+22
Space diagonal 48912643.687925

Equilateral Triangle

Length = n
Perimeter 84719184
Area 3.4531993837698E+14
Altitude 24456321.843963

Triangular Pyramid

Length = n
Surface area 3.4531993837698E+14
Volume 2.6540877643256E+21
Height 13312335.445109