638206913 (number)

638206913 is an odd 9-digits composite number following 638206912 and preceding 638206914. In scientific notation, it is written as 6.38206913 × 10^8. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 634967088 positive integers (up to 638206913) that are relatively prime to 638206913.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million two hundred six thousand nine hundred thirteen

Notation

Scientific notation 6.38206913 × 10^8
Engineering notation 6.38206913 × 10^6

Prime Factorization of 638206913

Prime Factorization 197 × 3239629

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638206913
Product of the distinct prime numbers

The prime factorization of 638206913 is 197 × 3239629. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 6, 55, 83, 187, 302, 6015, 4638, 38008, 82794, 148394, 940892, 6729489, 7725169, 58839615, 76447343, 349904343, 497695327, 7041937070, 5655102843

Basic calculations (n = 638206913)

Multiplication

n×y
n×2 1276413826
n×3 1914620739
n×4 2552827652
n×5 3191034565

Division

n÷y
n÷2 319103456.5
n÷3 212735637.66667
n÷3 159551728.25
n÷5 127641382.6

Exponentiation

ny
n2 407308063800989569
n3 2.5994682203844E+26
n4 1.6589985883731E+35
n5 1.058784367757E+44

Nth Root

y√n
2√n 25262.757430653
3√n 860.96831305491
4√n 158.94262307717
5√n 57.675623856296

Divisors of 638206913

1, 197, 3239629, 638206913

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638206912
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638206913 can be divided by 4 positive divisors. The sum of these divisors (counting 638206913) is 1, the average is 0.25.

Base conversion 638206913

Base System Value
2 Binary 100110000010100100001111000001
3 Ternary 1122110220021022002
4 Quaternary 212002210033001
5 Quinary 2301340110123
6 Senary 143154553345
8 Octal 4602441701
10 Decimal 638206913
12 Duodecimal 159898855
16 Hexadecimal 260a43c1
20 Vigesimal 9j8fh5d
36 Base36 ajyzlt

Cryptographic Hash Functions

md5 c818300056fa374815ff7f16cbec1db9
sha1 598a6b3bb0e6b71da618f6589ff6c5f2801b25b1
sha256 3aeeacc1fb5a65aa90b4188565696318945e8fe668058565f9d01c17af83a1ca
sha512 b2908ed321e2dc822d259c9b4c039bdc6e1d8770481e0473ccfdd779c15b589fab32fb420a15f7854ddb9cb01dddcf3cfcfb201b3073574c363125efe843e22a
ripemd-160 e33cb4a92b7386ece63a7748eda5118569308b62

638206913 as geometric shapes

Circle

Radius = n
Diameter 1276413826
Circumference 4009972298.702
Area 1.2795960209851E+18

Sphere

Radius = n
Volume 1.08886270192E+27
Surface area 5.1183840839403E+18
Circumference 4009972298.702

Square

Length = n
Perimeter 2552827652
Area 407308063800989569
Diagonal 902560871.96487

Cube

Length = n
Surface area 2443848382805937414
Volume 2.5994682203844E+26
Space diagonal 1105406799.0577

Equilateral Triangle

Length = n
Perimeter 1914620739
Area 1.7636956520895E+17
Altitude 552703399.52885

Triangular Pyramid

Length = n
Surface area 1.7636956520895E+17
Volume 3.0635026768545E+25
Height 300853623.98829