638689920 (number)

638689920 is an even 9-digits composite number following 638689919 and preceding 638689921. In scientific notation, it is written as 6.38689920 × 10^8. The sum of its digits is 51. It has a total of 9 prime factors and 32 positive divisors. There are 154828800 positive integers (up to 638689920) that are relatively prime to 638689920.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred eighty-nine thousand nine hundred twenty

Notation

Scientific notation 6.38689920 × 10^8
Engineering notation 6.38689920 × 10^6

Prime Factorization of 638689920

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 165 × 30241

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 9979530
Product of the distinct prime numbers

The prime factorization of 638689920 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 165 × 30241. Since it has a total of 9 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638689920)

Multiplication

n×y
n×2 1277379840
n×3 1916069760
n×4 2554759680
n×5 3193449600

Division

n÷y
n÷2 319344960
n÷3 212896640
n÷3 159672480
n÷5 127737984

Exponentiation

ny
n2 407924813909606400
n3 2.6053746676194E+26
n4 1.6640265380319E+35
n5 1.0627969764535E+44

Nth Root

y√n
2√n 25272.315287682
3√n 861.18545729082
4√n 158.97268723803
5√n 57.684351214151

Divisors of 638689920

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638689919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638689920 can be divided by 32 positive divisors. The sum of these divisors (counting 638689920) is 1, the average is 0.03125.

Base conversion 638689920

Base System Value
2 Binary 100110000100011010001010000000
3 Ternary 1122111210210212020
4 Quaternary 212010122022000
5 Quinary 2302001034140
6 Senary 143213201440
8 Octal 4604321200
10 Decimal 638689920
12 Duodecimal 159a90280
16 Hexadecimal 2611a280
20 Vigesimal 9jbg4g0
36 Base36 ak9cao

Cryptographic Hash Functions

md5 32aef89ccc67328887adb0c30e5a7266
sha1 1b0cdddd1f174e4f357c6f0e4202258dfe0e2347
sha256 8d83939d107dca7e20038e38a735bb0b1693d9246cf559e8db7a1eb3e1019fff
sha512 5929bbbba5151c179dee9e77e7ed4c9a974d8621fe943fd6cd0d90a116ef44c69810c20b1e45101fd1443277a5e775b317dcbfefe00a07b8961398efb03570d8
ripemd-160 61dcf75c02e3f8e01c284f62c7a4b92f77d473ea

638689920 as geometric shapes

Circle

Radius = n
Diameter 1277379840
Circumference 4013007121.1877
Area 1.2815335985954E+18

Sphere

Radius = n
Volume 1.0913367887523E+27
Surface area 5.1261343943816E+18
Circumference 4013007121.1877

Square

Length = n
Perimeter 2554759680
Area 407924813909606400
Diagonal 903243947.01499

Cube

Length = n
Surface area 2447548883457638400
Volume 2.6053746676194E+26
Space diagonal 1106243391.7221

Equilateral Triangle

Length = n
Perimeter 1916069760
Area 1.7663662583988E+17
Altitude 553121695.86105

Triangular Pyramid

Length = n
Surface area 1.7663662583988E+17
Volume 3.0704634916756E+25
Height 301081315.67166