638479920 (number)

638479920 is an even 9-digits composite number following 638479919 and preceding 638479921. In scientific notation, it is written as 6.38479920 × 10^8. The sum of its digits is 48. It has a total of 7 prime factors and 40 positive divisors. There are 157163520 positive integers (up to 638479920) that are relatively prime to 638479920.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million four hundred seventy-nine thousand nine hundred twenty

Notation

Scientific notation 6.38479920 × 10^8
Engineering notation 6.38479920 × 10^6

Prime Factorization of 638479920

Prime Factorization 2 × 2 × 2 × 2 × 15 × 13 × 204641

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 79809990
Product of the distinct prime numbers

The prime factorization of 638479920 is 2 × 2 × 2 × 2 × 15 × 13 × 204641. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638479920)

Multiplication

n×y
n×2 1276959840
n×3 1915439760
n×4 2553919680
n×5 3192399600

Division

n÷y
n÷2 319239960
n÷3 212826640
n÷3 159619980
n÷5 127695984

Exponentiation

ny
n2 407656608243206400
n3 2.6028055861859E+26
n4 1.6618391024436E+35
n5 1.061050897181E+44

Nth Root

y√n
2√n 25268.16020212
3√n 861.09106157812
4√n 158.95961814914
5√n 57.680557414726

Divisors of 638479920

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638479919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638479920 can be divided by 40 positive divisors. The sum of these divisors (counting 638479920) is 1, the average is 0.025.

Base conversion 638479920

Base System Value
2 Binary 100110000011100110111000110000
3 Ternary 1122111102010210110
4 Quaternary 212003212320300
5 Quinary 2301422324140
6 Senary 143204501320
8 Octal 4603467060
10 Decimal 638479920
12 Duodecimal 1599aa840
16 Hexadecimal 260e6e30
20 Vigesimal 9ja9jg0
36 Base36 ak4u9c

Cryptographic Hash Functions

md5 fa4a10d81fc46cdc77e5af19d4f1f2ef
sha1 cf0edb735a53a1634719fc0c9dda29f3354fb4b0
sha256 82cb71248b893c1caea2916e18ecf1ca1fb9f0ab2d676f55881ae01af0601b85
sha512 053fec90f5ec0dd92b8a1b945c486a897dd00a71ed769147e2b281a20af4bd0a8edd08655c55e9b2bb1dfa71a3e7d5664dabc62fc9cae5a4b0ab0e0435a692f2
ripemd-160 505b44ce3525799c80c5a6ee21fca0354dbab376

638479920 as geometric shapes

Circle

Radius = n
Diameter 1276959840
Circumference 4011687652.2732
Area 1.2806910056442E+18

Sphere

Radius = n
Volume 1.0902606544379E+27
Surface area 5.1227640225768E+18
Circumference 4011687652.2732

Square

Length = n
Perimeter 2553919680
Area 407656608243206400
Diagonal 902946962.16689

Cube

Length = n
Surface area 2445939649459238400
Volume 2.6028055861859E+26
Space diagonal 1105879661.0525

Equilateral Triangle

Length = n
Perimeter 1915439760
Area 1.7652048937961E+17
Altitude 552939830.52626

Triangular Pyramid

Length = n
Surface area 1.7652048937961E+17
Volume 3.0674358001705E+25
Height 300982320.7223