28668725 (number)

28668725 is an odd 8-digits composite number following 28668724 and preceding 28668726. In scientific notation, it is written as 2.8668725 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors. There are 22886400 positive integers (up to 28668725) that are relatively prime to 28668725.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred sixty-eight thousand seven hundred twenty-five

Notation

Scientific notation 2.8668725 × 10^7
Engineering notation 2.8668725 × 10^6

Prime Factorization of 28668725

Prime Factorization 5 × 5 × 1789 × 641

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 5733745
Product of the distinct prime numbers

The prime factorization of 28668725 is 5 × 5 × 1789 × 641. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 51, 28, 568, 750, 3317, 1737, 33616, 22668, 570542, 345371, 7403778, 5506189, 42406811, 73449470, 361057126, 809605992, 4501779453, 1807673151

Basic calculations (n = 28668725)

Multiplication

n×y
n×2 57337450
n×3 86006175
n×4 114674900
n×5 143343625

Division

n÷y
n÷2 14334362.5
n÷3 9556241.6666667
n÷3 7167181.25
n÷5 5733745

Exponentiation

ny
n2 821895793125625
n3 2.3562704471775E+22
n4 6.755126947576E+29
n5 1.9366087680015E+37

Nth Root

y√n
2√n 5354.31835064
3√n 306.05733543374
4√n 73.173207874467
5√n 31.008565508942

Divisors of 28668725

1, 5, 25, 641, 1789, 3205, 8945, 16025, 44725, 1146749, 5733745, 28668725

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28668724
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28668725 can be divided by 12 positive divisors. The sum of these divisors (counting 28668725) is 1, the average is 0.083333333333333.

Base conversion 28668725

Base System Value
2 Binary 1101101010111001100110101
3 Ternary 1222221112002122
4 Quaternary 1231113030311
5 Quinary 24314344400
6 Senary 2502245325
8 Octal 155271465
10 Decimal 28668725
12 Duodecimal 9726845
16 Hexadecimal 1b57335
20 Vigesimal 8j3bg5
36 Base36 h2gxh

Cryptographic Hash Functions

md5 a97514bb8359f0a47e1829eb3a5c58ac
sha1 bff873421e2f3d4a21d00379adf8ea8d74fde67a
sha256 bd91eccde2f63e53cd38d69c35182a31df55ca9c0631e39d4f786aecdc8affcd
sha512 09ded8371f867c3cf7b9e5e364472fc31251724e3d89b2121ebbe1ad7693391da65323c27b6d2655177517052350416eb5b58aac554333c787808ced9321fe39
ripemd-160 718b4e3542526f4b151ba74397c04b9201d8bbf4

28668725 as geometric shapes

Circle

Radius = n
Diameter 57337450
Circumference 180130911.69557
Area 2.5820617856998E+15

Sphere

Radius = n
Volume 9.8699225689649E+22
Surface area 1.0328247142799E+16
Circumference 180130911.69557

Square

Length = n
Perimeter 114674900
Area 821895793125625
Diagonal 40543699.710945

Cube

Length = n
Surface area 4931374758753750
Volume 2.3562704471775E+22
Space diagonal 49655688.28822

Equilateral Triangle

Length = n
Perimeter 86006175
Area 3.5589131805518E+14
Altitude 24827844.14411

Triangular Pyramid

Length = n
Surface area 3.5589131805518E+14
Volume 2.7768913525145E+21
Height 13514566.570315