28897729 (number)

28897729 is an odd 8-digits composite number following 28897728 and preceding 28897730. In scientific notation, it is written as 2.8897729 × 10^7. The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors. There are 23562000 positive integers (up to 28897729) that are relatively prime to 28897729.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred ninety-seven thousand seven hundred twenty-nine

Notation

Scientific notation 2.8897729 × 10^7
Engineering notation 2.8897729 × 10^6

Prime Factorization of 28897729

Prime Factorization 7 × 23 × 239 × 751

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28897729
Product of the distinct prime numbers

The prime factorization of 28897729 is 7 × 23 × 239 × 751. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 10, 51, 948, 644, 7377, 210, 40678, 26651, 546776, 491125, 6614257, 2484281, 18772033, 79167370, 477526009, 383360192, 6822769849, 8508068722

Basic calculations (n = 28897729)

Multiplication

n×y
n×2 57795458
n×3 86693187
n×4 115590916
n×5 144488645

Division

n÷y
n÷2 14448864.5
n÷3 9632576.3333333
n÷3 7224432.25
n÷5 5779545.8

Exponentiation

ny
n2 835078741357441
n3 2.4131879161408E+22
n4 6.9735650426713E+29
n5 2.0152019276699E+37

Nth Root

y√n
2√n 5375.6607965905
3√n 306.8700975099
4√n 73.318897949918
5√n 31.057946878101

Divisors of 28897729

1, 7, 23, 161, 239, 751, 1673, 5257, 5497, 17273, 38479, 120911, 179489, 1256423, 4128247, 28897729

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28897728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28897729 can be divided by 16 positive divisors. The sum of these divisors (counting 28897729) is 1, the average is 0.0625.

Base conversion 28897729

Base System Value
2 Binary 1101110001111000111000001
3 Ternary 2000101011020021
4 Quaternary 1232033013001
5 Quinary 24344211404
6 Senary 2511213441
8 Octal 156170701
10 Decimal 28897729
12 Duodecimal 9817281
16 Hexadecimal 1b8f1c1
20 Vigesimal 90c469
36 Base36 h7dmp

Cryptographic Hash Functions

md5 817e807b9de057bebcf8f9dd046508b8
sha1 ec135aa67e67122610cacc2c9c791f33c2838c5e
sha256 562e9ec18066236b08757f47a7381f19882f6c211b46a549f168381a7fdafae1
sha512 cefffb6c662b75e5a4a391e8067950de622444f2a327bc03e6d18be93e59c31f5b12fc2336a21b4af8ef2ea5f5a8c50c453f19ccaef81ff1f67507effc2c6d94
ripemd-160 c62dce1116ea92bfbd9001cd08597c799b6de320

28897729 as geometric shapes

Circle

Radius = n
Diameter 57795458
Circumference 181569786.26366
Area 2.6234772390175E+15

Sphere

Radius = n
Volume 1.010833790544E+23
Surface area 1.049390895607E+16
Circumference 181569786.26366

Square

Length = n
Perimeter 115590916
Area 835078741357441
Diagonal 40867560.273582

Cube

Length = n
Surface area 5010472448144646
Volume 2.4131879161408E+22
Space diagonal 50052334.851357

Equilateral Triangle

Length = n
Perimeter 86693187
Area 3.6159970208794E+14
Altitude 25026167.425678

Triangular Pyramid

Length = n
Surface area 3.6159970208794E+14
Volume 2.8439692329677E+21
Height 13622520.091194