638006905 (number)

638006905 is an odd 9-digits composite number following 638006904 and preceding 638006906. In scientific notation, it is written as 6.38006905 × 10^8. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 498065920 positive integers (up to 638006905) that are relatively prime to 638006905.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six thousand nine hundred five

Notation

Scientific notation 6.38006905 × 10^8
Engineering notation 6.38006905 × 10^6

Prime Factorization of 638006905

Prime Factorization 5 × 47 × 353 × 7691

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638006905
Product of the distinct prime numbers

The prime factorization of 638006905 is 5 × 47 × 353 × 7691. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 42, 56, 907, 597, 9687, 3055, 90284, 58310, 835792, 274117, 755079, 364834, 98700920, 21378506, 853619451, 184681962, 4392339450, 4426007395

Basic calculations (n = 638006905)

Multiplication

n×y
n×2 1276013810
n×3 1914020715
n×4 2552027620
n×5 3190034525

Division

n÷y
n÷2 319003452.5
n÷3 212668968.33333
n÷3 159501726.25
n÷5 127601381

Exponentiation

ny
n2 407052810827679025
n3 2.5970250400772E+26
n4 1.6569199080271E+35
n5 1.0571263423533E+44

Nth Root

y√n
2√n 25258.798566044
3√n 860.87836388709
4√n 158.93016883539
5√n 57.672008404231

Divisors of 638006905

1, 5, 47, 235, 353, 1765, 7691, 16591, 38455, 82955, 361477, 1807385, 2714923, 13574615, 127601381, 638006905

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638006904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638006905 can be divided by 16 positive divisors. The sum of these divisors (counting 638006905) is 1, the average is 0.0625.

Base conversion 638006905

Base System Value
2 Binary 100110000001110011011001111001
3 Ternary 1122110112002221101
4 Quaternary 212001303121321
5 Quinary 2301312210110
6 Senary 143150411401
8 Octal 4601633171
10 Decimal 638006905
12 Duodecimal 159800b61
16 Hexadecimal 26073679
20 Vigesimal 9j7ah55
36 Base36 ajupa1

Cryptographic Hash Functions

md5 80077db5dae545dab4665e322fadbfd7
sha1 7c4989fbefcf47e1807c2a2d6435cfc85b6529b0
sha256 47256cac3d93eaa41f70c91144feaed600f88e41e82ddc29630b6e197a75a8e3
sha512 5f816812f565fad37f661db572e25508efb8aae6dfbcfa31eb46d91380cabc99cf85855187f22658ea7bbc51de84bbf572c1d807e91023453a932c73dae268d5
ripemd-160 b5a7943936aabbe6436972c38f84b13ff2f0478c

638006905 as geometric shapes

Circle

Radius = n
Diameter 1276013810
Circumference 4008715611.3751
Area 1.2787941201193E+18

Sphere

Radius = n
Volume 1.087839304946E+27
Surface area 5.1151764804772E+18
Circumference 4008715611.3751

Square

Length = n
Perimeter 2552027620
Area 407052810827679025
Diagonal 902278017.93868

Cube

Length = n
Surface area 2442316864966074150
Volume 2.5970250400772E+26
Space diagonal 1105060375.0398

Equilateral Triangle

Length = n
Perimeter 1914020715
Area 1.7625903742932E+17
Altitude 552530187.51988

Triangular Pyramid

Length = n
Surface area 1.7625903742932E+17
Volume 3.0606233612497E+25
Height 300759339.31289