78728900 (number)

78728900 is an even 8-digits composite number following 78728899 and preceding 78728901. In scientific notation, it is written as 7.8728900 × 10^7. The sum of its digits is 41. It has a total of 5 prime factors and 18 positive divisors. There are 31491520 positive integers (up to 78728900) that are relatively prime to 78728900.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.8728900 × 10^7
Engineering notation 7.8728900 × 10^6

Prime Factorization of 78728900

Prime Factorization 2 × 2 × 5 × 5 × 787289

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7872890
Product of the distinct prime numbers

The prime factorization of 78728900 is 2 × 2 × 5 × 5 × 787289. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 3, 3, 65, 436, 5, 1479, 3426, 23604, 61160, 531408, 415883, 5495026, 3462230, 18076340, 6320353, 264222498, 333541442, 2907120037, 6379339603

Basic calculations (n = 78728900)

Multiplication

n×y
n×2 157457800
n×3 236186700
n×4 314915600
n×5 393644500

Division

n÷y
n÷2 39364450
n÷3 26242966.666667
n÷3 19682225
n÷5 15745780

Exponentiation

ny
n2 6198239695210000
n3 4.8798059314022E+23
n4 3.8418175319277E+31
n5 3.0246206828938E+39

Nth Root

y√n
2√n 8872.9307446863
3√n 428.59265873666
4√n 94.196235299965
5√n 37.951315704165

Divisors of 78728900

1, 2, 4, 5, 10, 20, 25, 50, 100, 787289, 1574578, 3149156, 3936445, 7872890, 15745780, 19682225, 39364450, 78728900

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78728899
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78728900 can be divided by 18 positive divisors. The sum of these divisors (counting 78728900) is 1, the average is 0.055555555555556.

Base conversion 78728900

Base System Value
2 Binary 100101100010100111011000100
3 Ternary 12111010211202012
4 Quaternary 10230110323010
5 Quinary 130123311100
6 Senary 11451233352
8 Octal 454247304
10 Decimal 78728900
12 Duodecimal 22448858
16 Hexadecimal 4b14ec4
20 Vigesimal 14c1250
36 Base36 1avflw

Cryptographic Hash Functions

md5 0868c929358608009e6b38a291a8bad9
sha1 9487d4b42f112c6baf37530caf6adcc1e399b676
sha256 4302dc632e9377e19acdf1b65ce6cef93daef7877701692ebd4f119a0ed0534d
sha512 f66337bc7fdc37d77067859bca8a21a8fea167c3d98c6ed091fa115846aac7a564cc752e3be0389bc2c12d39f6483a5d777b44d0a084c5b833c3f580e6ade524
ripemd-160 d44bda221ad9ae803474896097662354a26976a3

78728900 as geometric shapes

Circle

Radius = n
Diameter 157457800
Circumference 494668267.73041
Area 1.947234429166E+16

Sphere

Radius = n
Volume 2.0440483286716E+24
Surface area 7.7889377166642E+16
Circumference 494668267.73041

Square

Length = n
Perimeter 314915600
Area 6198239695210000
Diagonal 111339478.13072

Cube

Length = n
Surface area 37189438171260000
Volume 4.8798059314022E+23
Space diagonal 136362454.82401

Equilateral Triangle

Length = n
Perimeter 236186700
Area 2.6839165173985E+15
Altitude 68181227.412005

Triangular Pyramid

Length = n
Surface area 2.6839165173985E+15
Volume 5.7509064416147E+22
Height 37113159.376905