638778864 (number)

638778864 is an even 9-digits composite number following 638778863 and preceding 638778865. In scientific notation, it is written as 6.38778864 × 10^8. The sum of its digits is 57. It has a total of 6 prime factors and 20 positive divisors. There are 212926272 positive integers (up to 638778864) that are relatively prime to 638778864.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million seven hundred seventy-eight thousand eight hundred sixty-four

Notation

Scientific notation 6.38778864 × 10^8
Engineering notation 6.38778864 × 10^6

Prime Factorization of 638778864

Prime Factorization 2 × 2 × 2 × 2 × 3 × 13307893

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 79847358
Product of the distinct prime numbers

The prime factorization of 638778864 is 2 × 2 × 2 × 2 × 3 × 13307893. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 5, 32, 51, 67, 571, 1549, 355, 56506, 43391, 483101, 656909, 6311825, 6842942, 33850740, 1554454, 424128612, 507906678, 6651001290, 6773041122

Basic calculations (n = 638778864)

Multiplication

n×y
n×2 1277557728
n×3 1916336592
n×4 2555115456
n×5 3193894320

Division

n÷y
n÷2 319389432
n÷3 212926288
n÷3 159694716
n÷5 127755772.8

Exponentiation

ny
n2 408038437093130496
n3 2.6064632931469E+26
n4 1.664953661454E+35
n5 1.0635372084763E+44

Nth Root

y√n
2√n 25274.074938561
3√n 861.22543168296
4√n 158.97822158573
5√n 57.685957749967

Divisors of 638778864

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13307893, 26615786, 39923679, 53231572, 79847358, 106463144, 159694716, 212926288, 319389432, 638778864

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638778863
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638778864 can be divided by 20 positive divisors. The sum of these divisors (counting 638778864) is 1, the average is 0.05.

Base conversion 638778864

Base System Value
2 Binary 100110000100101111110111110000
3 Ternary 1122111222022212110
4 Quaternary 212010233313300
5 Quinary 2302011410424
6 Senary 143215125320
8 Octal 4604576760
10 Decimal 638778864
12 Duodecimal 159b13840
16 Hexadecimal 2612fdf0
20 Vigesimal 9jc7734
36 Base36 akb8xc

Cryptographic Hash Functions

md5 1cbb1d0dbe162174a8d87b2154f8f0d2
sha1 1bd55f16da7f18bc33282f1c82581581b701092b
sha256 683fc2ec5874f454773e6f3383f3673b90148abe10d1b88f42a0e59e8188c830
sha512 f7424131fe039454d510128354359f9f9348f644d6d474fc4e2b1821fc1dce7c179b2166a0186819b8a7acc5dad34723df992078f67bf0bc1a1ed1316e7e5f32
ripemd-160 25e61f91cd3053bebd21adba1cf385766ae5a375

638778864 as geometric shapes

Circle

Radius = n
Diameter 1277557728
Circumference 4013565972.8217
Area 1.281890556354E+18

Sphere

Radius = n
Volume 1.0917927911469E+27
Surface area 5.1275622254162E+18
Circumference 4013565972.8217

Square

Length = n
Perimeter 2555115456
Area 408038437093130496
Diagonal 903369732.82608

Cube

Length = n
Surface area 2448230622558782976
Volume 2.6064632931469E+26
Space diagonal 1106397447.2491

Equilateral Triangle

Length = n
Perimeter 1916336592
Area 1.7668582612157E+17
Altitude 553198723.62457

Triangular Pyramid

Length = n
Surface area 1.7668582612157E+17
Volume 3.0717464491633E+25
Height 301123244.27536