638863905 (number)

638863905 is an odd 9-digits composite number following 638863904 and preceding 638863906. In scientific notation, it is written as 6.38863905 × 10^8. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 340727408 positive integers (up to 638863905) that are relatively prime to 638863905.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38863905 × 10^8
Engineering notation 6.38863905 × 10^6

Prime Factorization of 638863905

Prime Factorization 5 × 3 × 42590927

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638863905
Product of the distinct prime numbers

The prime factorization of 638863905 is 5 × 3 × 42590927. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638863905)

Multiplication

n×y
n×2 1277727810
n×3 1916591715
n×4 2555455620
n×5 3194319525

Division

n÷y
n÷2 319431952.5
n÷3 212954635
n÷3 159715976.25
n÷5 127772781

Exponentiation

ny
n2 408147089111849025
n3 2.6075044316438E+26
n4 1.6658404635048E+35
n5 1.0642453436217E+44

Nth Root

y√n
2√n 25275.757258686
3√n 861.26364846718
4√n 158.98351253726
5√n 57.687493621171

Divisors of 638863905

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 -638863904
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 638863905 can be divided by 8 positive divisors. The sum of these divisors (counting 638863905) is 1, the average is 0.125.

Base conversion 638863905

Base System Value
2 Binary 100110000101000100101000100001
3 Ternary 1122112010122112010
4 Quaternary 212011010220201
5 Quinary 2302022121110
6 Senary 143221023133
8 Octal 4605045041
10 Decimal 638863905
12 Duodecimal 159b54aa9
16 Hexadecimal 26144a21
20 Vigesimal 9jchjf5
36 Base36 akd2jl

Cryptographic Hash Functions

md5 1adb4710c096d13cd63b67d2d3b38421
sha1 eaf5b488ecdb36a4cc190189cfec8d3d8f44a80b
sha256 6bf2c3bf801d8d02b2c69e26042fe0a6be5d472754a1727bdeb2e296bc3ae7b4
sha512 ce449493f1473b06dc97c85d054bd064ab2be7a3b9383b3a0aed223e2a579bf4d271e64aa1756e453558d1303e51603905dc9accb0cd7e6baef5529241c48fd0
ripemd-160 54cd0951a798a054094457284cd19bcea7b1cda7

638863905 as geometric shapes

Circle

Radius = n
Diameter 1277727810
Circumference 4014100301.1834
Area 1.2822318967378E+18

Sphere

Radius = n
Volume 1.0922289022207E+27
Surface area 5.1289275869514E+18
Circumference 4014100301.1834

Square

Length = n
Perimeter 2555455620
Area 408147089111849025
Diagonal 903489998.96164

Cube

Length = n
Surface area 2448882534671094150
Volume 2.6075044316438E+26
Space diagonal 1106544742.5819

Equilateral Triangle

Length = n
Perimeter 1916591715
Area 1.7673287382577E+17
Altitude 553272371.29093

Triangular Pyramid

Length = n
Surface area 1.7673287382577E+17
Volume 3.0729734426488E+25
Height 301163332.98721