638561644 (number)

638561644 is an even 9-digits composite number following 638561643 and preceding 638561645. In scientific notation, it is written as 6.38561644 × 10^8. The sum of its digits is 43. It has a total of 5 prime factors and 24 positive divisors. There are 271246080 positive integers (up to 638561644) that are relatively prime to 638561644.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million five hundred sixty-one thousand six hundred forty-four

Notation

Scientific notation 6.38561644 × 10^8
Engineering notation 6.38561644 × 10^6

Prime Factorization of 638561644

Prime Factorization 2 × 2 × 7 × 113 × 201821

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 319280822
Product of the distinct prime numbers

The prime factorization of 638561644 is 2 × 2 × 7 × 113 × 201821. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 9, 73, 94, 616, 830, 2760, 4456, 47320, 20874, 968923, 384552, 7222199, 6100967, 36199952, 66590723, 536546077, 770859906, 3894911699, 6500393942

Basic calculations (n = 638561644)

Multiplication

n×y
n×2 1277123288
n×3 1915684932
n×4 2554246576
n×5 3192808220

Division

n÷y
n÷2 319280822
n÷3 212853881.33333
n÷3 159640411
n÷5 127712328.8

Exponentiation

ny
n2 407760973187982736
n3 2.6038051739796E+26
n4 1.6626901125521E+35
n5 1.0617301317338E+44

Nth Root

y√n
2√n 25269.777284337
3√n 861.12779925326
4√n 158.96470452379
5√n 57.682033935568

Divisors of 638561644

1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 201821, 403642, 807284, 1412747, 2825494, 5650988, 22805773, 45611546, 91223092, 159640411, 319280822, 638561644

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638561643
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638561644 can be divided by 24 positive divisors. The sum of these divisors (counting 638561644) is 1, the average is 0.041666666666667.

Base conversion 638561644

Base System Value
2 Binary 100110000011111010110101101100
3 Ternary 1122111120021220021
4 Quaternary 212003322311230
5 Quinary 2301432433034
6 Senary 143210331524
8 Octal 4603726554
10 Decimal 638561644
12 Duodecimal 159a29ba4
16 Hexadecimal 260fad6c
20 Vigesimal 9jb0424
36 Base36 ak6lbg

Cryptographic Hash Functions

md5 15140f3753bfa9f1d809fe05cbf7e8d3
sha1 2f916e56ce1c9f5c0def87ff7907ffeb4a1bd6e7
sha256 0daec7a9edf63e63cbe8bbe4448827cdf4e3e4c309f5a5a3a401444f12943c5f
sha512 accf2e0551a1ce242102bf6d850f430c90959f32bfac419957b4dc1c29d4a38d813d6b417ae045b1e73a49a5c60ddcd8655829569fd3034f0ab97aaf5045bd21
ripemd-160 5bcc0c8cb68a4587b4bd4c80ae2ad0624db0f46b

638561644 as geometric shapes

Circle

Radius = n
Diameter 1277123288
Circumference 4012201139.3092
Area 1.281018877788E+18

Sphere

Radius = n
Volume 1.0906793607938E+27
Surface area 5.124075511152E+18
Circumference 4012201139.3092

Square

Length = n
Perimeter 2554246576
Area 407760973187982736
Diagonal 903062537.35606

Cube

Length = n
Surface area 2446565839127896416
Volume 2.6038051739796E+26
Space diagonal 1106021211.1727

Equilateral Triangle

Length = n
Perimeter 1915684932
Area 1.7656568072633E+17
Altitude 553010605.58635

Triangular Pyramid

Length = n
Surface area 1.7656568072633E+17
Volume 3.0686138256826E+25
Height 301020845.78535