638993805 (number)

638993805 is an odd 9-digits composite number following 638993804 and preceding 638993806. In scientific notation, it is written as 6.38993805 × 10^8. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 337282560 positive integers (up to 638993805) that are relatively prime to 638993805.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-three thousand eight hundred five

Notation

Scientific notation 6.38993805 × 10^8
Engineering notation 6.38993805 × 10^6

Prime Factorization of 638993805

Prime Factorization 15 × 97 × 439171

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638993805
Product of the distinct prime numbers

The prime factorization of 638993805 is 15 × 97 × 439171. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 10, 16, 57, 151, 44, 2892, 603, 43431, 78219, 984019, 355275, 9565293, 8116571, 86398103, 55372179, 622688191, 710638588, 2804531548, 8794232916

Basic calculations (n = 638993805)

Multiplication

n×y
n×2 1277987610
n×3 1916981415
n×4 2555975220
n×5 3194969025

Division

n÷y
n÷2 319496902.5
n÷3 212997935
n÷3 159748451.25
n÷5 127798761

Exponentiation

ny
n2 408313082828378025
n3 2.6090953042779E+26
n4 1.6671957360881E+35
n5 1.0653277470827E+44

Nth Root

y√n
2√n 25278.326784026
3√n 861.3220180016
4√n 158.99159343823
5√n 57.68983934644

Divisors of 638993805

1, 15, 97, 1455, 439171, 6587565, 42599587, 638993805

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638993804
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638993805 can be divided by 8 positive divisors. The sum of these divisors (counting 638993805) is 1, the average is 0.125.

Base conversion 638993805

Base System Value
2 Binary 100110000101100100010110001101
3 Ternary 1122112101020201020
4 Quaternary 212011210112031
5 Quinary 2302040300210
6 Senary 143223504353
8 Octal 4605442615
10 Decimal 638993805
12 Duodecimal 159bb80b9
16 Hexadecimal 2616458d
20 Vigesimal 9jde4a5
36 Base36 akfurx

Cryptographic Hash Functions

md5 8a79ae8d97961068bd1e4691bc4fe4c7
sha1 bafe5a88df7bab0d1b74b6199502d1f0947e42ad
sha256 e02bc918bfe00517c26b7a04145ea5a19c08768d3879be4d2a807bf5b8ae43f8
sha512 41ae99648fe13918c500ab044eab6896fce53d4161097e9636561dda8e6fa067f1860680f75ba95dd1f329c3e3015ee6142b0e148bca8112fdefff43edc35957
ripemd-160 c3dfe46b7abfd7816213194fb8a2c5e10688aaf6

638993805 as geometric shapes

Circle

Radius = n
Diameter 1277987610
Circumference 4014916486.9548
Area 1.2827533813782E+18

Sphere

Radius = n
Volume 1.0928952853913E+27
Surface area 5.1310135255129E+18
Circumference 4014916486.9548

Square

Length = n
Perimeter 2555975220
Area 408313082828378025
Diagonal 903673705.30339

Cube

Length = n
Surface area 2449878496970268150
Volume 2.6090953042779E+26
Space diagonal 1106769735.9818

Equilateral Triangle

Length = n
Perimeter 1916981415
Area 1.7680475121346E+17
Altitude 553384867.99088

Triangular Pyramid

Length = n
Surface area 1.7680475121346E+17
Volume 3.0748483040281E+25
Height 301224568.43446