638789905 (number)

638789905 is an odd 9-digits composite number following 638789904 and preceding 638789906. In scientific notation, it is written as 6.38789905 × 10^8. The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors. There are 471721728 positive integers (up to 638789905) that are relatively prime to 638789905.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million seven hundred eighty-nine thousand nine hundred five

Notation

Scientific notation 6.38789905 × 10^8
Engineering notation 6.38789905 × 10^6

Prime Factorization of 638789905

Prime Factorization 5 × 13 × 9827537

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638789905
Product of the distinct prime numbers

The prime factorization of 638789905 is 5 × 13 × 9827537. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638789905)

Multiplication

n×y
n×2 1277579810
n×3 1916369715
n×4 2555159620
n×5 3193949525

Division

n÷y
n÷2 319394952.5
n÷3 212929968.33333
n÷3 159697476.25
n÷5 127757981

Exponentiation

ny
n2 408052542729909025
n3 2.6065984500545E+26
n4 1.6650687762834E+35
n5 1.0636291254206E+44

Nth Root

y√n
2√n 25274.29336302
3√n 861.2303936167
4√n 158.97890854771
5√n 57.686157163658

Divisors of 638789905

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 -638789904
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 638789905 can be divided by 8 positive divisors. The sum of these divisors (counting 638789905) is 1, the average is 0.125.

Base conversion 638789905

Base System Value
2 Binary 100110000100110010100100010001
3 Ternary 1122111222220000101
4 Quaternary 212010302210101
5 Quinary 2302012234110
6 Senary 143215252401
8 Octal 4604624421
10 Decimal 638789905
12 Duodecimal 159b1a101
16 Hexadecimal 26132911
20 Vigesimal 9jc8ef5
36 Base36 akbhg1

Cryptographic Hash Functions

md5 a504e432db361f05c97f0c97167e3442
sha1 364fe327365fc5e4fcf610daf82c4409b940e4ac
sha256 0fcb2ca8c51c4b42842bf81bca64a20bf82954b09113afa7ea0f9b97fc81494d
sha512 bfe11dbbf5074936922ba60cf7b91763987745ed8ca8ff7b54ddcff8eaf997de7585d71b213a32d889ca7e8aeb0f6f6058080edd4b6e94cbc70ef471e7ef1e54
ripemd-160 422fa41671f71966a97976011c37e482e67a1cd8

638789905 as geometric shapes

Circle

Radius = n
Diameter 1277579810
Circumference 4013635345.4706
Area 1.2819348705189E+18

Sphere

Radius = n
Volume 1.09184940554E+27
Surface area 5.1277394820757E+18
Circumference 4013635345.4706

Square

Length = n
Perimeter 2555159620
Area 408052542729909025
Diagonal 903385347.15802

Cube

Length = n
Surface area 2448315256379454150
Volume 2.6065984500545E+26
Space diagonal 1106416570.8221

Equilateral Triangle

Length = n
Perimeter 1916369715
Area 1.7669193404147E+17
Altitude 553208285.41105

Triangular Pyramid

Length = n
Surface area 1.7669193404147E+17
Volume 3.0719057331064E+25
Height 301128449.05267