638238081 (number)

638238081 is an odd 9-digits composite number following 638238080 and preceding 638238082. In scientific notation, it is written as 6.38238081 × 10^8. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 392761872 positive integers (up to 638238081) that are relatively prime to 638238081.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million two hundred thirty-eight thousand eighty-one

Notation

Scientific notation 6.38238081 × 10^8
Engineering notation 6.38238081 × 10^6

Prime Factorization of 638238081

Prime Factorization 39 × 16365079

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638238081
Product of the distinct prime numbers

The prime factorization of 638238081 is 39 × 16365079. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 4, 25, 5, 145, 306, 4539, 3791, 63933, 44839, 656122, 364629, 2833882, 9330473, 46261384, 32482657, 737092628, 721627205, 5157150487, 1595076784

Basic calculations (n = 638238081)

Multiplication

n×y
n×2 1276476162
n×3 1914714243
n×4 2552952324
n×5 3191190405

Division

n÷y
n÷2 319119040.5
n÷3 212746027
n÷3 159559520.25
n÷5 127647616.2

Exponentiation

ny
n2 407347848038562561
n3 2.5998490883161E+26
n4 1.6593226930165E+35
n5 1.0590429313506E+44

Nth Root

y√n
2√n 25263.374299567
3√n 860.98232848001
4√n 158.94456360495
5√n 57.676187184173

Divisors of 638238081

1, 39, 16365079, 638238081

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638238080
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638238081 can be divided by 4 positive divisors. The sum of these divisors (counting 638238081) is 1, the average is 0.25.

Base conversion 638238081

Base System Value
2 Binary 100110000010101011110110000001
3 Ternary 1122110221212001110
4 Quaternary 212002223312001
5 Quinary 2301342104311
6 Senary 143155353533
8 Octal 4602536601
10 Decimal 638238081
12 Duodecimal 1598b28a9
16 Hexadecimal 260abd81
20 Vigesimal 9j8jf41
36 Base36 ajznnl

Cryptographic Hash Functions

md5 37cf427583032565eb31328fad8f86e6
sha1 3634957c064c586ba5811dca12aed04b3b3ba906
sha256 37870ae9c60e37ffecefaa7f0257d3a0aec6f4a441815073defd00d4ba307cb2
sha512 506a9aa9e10a252f51384578d90288944595f9eb6bed14f133b046c8794994d672d8691d9cfb451b5e59947cdd03c89279abe25d7ae2bcc1ef5f8ac8b9e207fc
ripemd-160 f26f95f1a562a39892b5e6404abdde3d8467e587

638238081 as geometric shapes

Circle

Radius = n
Diameter 1276476162
Circumference 4010168133.0217
Area 1.2797210068536E+18

Sphere

Radius = n
Volume 1.0890222395061E+27
Surface area 5.1188840274142E+18
Circumference 4010168133.0217

Square

Length = n
Perimeter 2552952324
Area 407347848038562561
Diagonal 902604950.17318

Cube

Length = n
Surface area 2444087088231375366
Volume 2.5998490883161E+26
Space diagonal 1105460783.6173

Equilateral Triangle

Length = n
Perimeter 1914714243
Area 1.7638679228916E+17
Altitude 552730391.80863

Triangular Pyramid

Length = n
Surface area 1.7638679228916E+17
Volume 3.0639515340167E+25
Height 300868316.72439