638963945 (number)

638963945 is an odd 9-digits composite number following 638963944 and preceding 638963946. In scientific notation, it is written as 6.38963945 × 10^8. The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors. There are 510837040 positive integers (up to 638963945) that are relatively prime to 638963945.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred sixty-three thousand nine hundred forty-five

Notation

Scientific notation 6.38963945 × 10^8
Engineering notation 6.38963945 × 10^6

Prime Factorization of 638963945

Prime Factorization 5 × 1559 × 81971

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638963945
Product of the distinct prime numbers

The prime factorization of 638963945 is 5 × 1559 × 81971. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638963945)

Multiplication

n×y
n×2 1277927890
n×3 1916891835
n×4 2555855780
n×5 3194819725

Division

n÷y
n÷2 319481972.5
n÷3 212987981.66667
n÷3 159740986.25
n÷5 127792789

Exponentiation

ny
n2 408274923009963025
n3 2.6087295545102E+26
n4 1.6668841275879E+35
n5 1.0650788580215E+44

Nth Root

y√n
2√n 25277.736152591
3√n 861.30860134775
4√n 158.98973599761
5√n 57.689300170383

Divisors of 638963945

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638963944
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638963945 can be divided by 8 positive divisors. The sum of these divisors (counting 638963945) is 1, the average is 0.125.

Base conversion 638963945

Base System Value
2 Binary 100110000101011101000011101001
3 Ternary 1122112022201202022
4 Quaternary 212011131003221
5 Quinary 2302033321240
6 Senary 143223114225
8 Octal 4605350351
10 Decimal 638963945
12 Duodecimal 159ba2975
16 Hexadecimal 2615d0e9
20 Vigesimal 9jda9h5
36 Base36 akf7qh

Cryptographic Hash Functions

md5 d7d812ad9f3c7e70458febbc4bbe649a
sha1 17345840353dd4aacca5c73a3f244d2560ce7e32
sha256 c819d000b540526c28d7b8153da5ad865063a01c38920ee9428f43d0fa99af22
sha512 aa0c746c14ed2d961a04f63038e85400eabbbcacc0e8c2c96d158e54c8b629da51cdac36f11d8846a1bf0d18a9ccb4f32cceaabc5dfb66b3ff55cd82a4953760
ripemd-160 42802da33477c3158978569e3cca8ec3a35feb50

638963945 as geometric shapes

Circle

Radius = n
Diameter 1277927890
Circumference 4014728871.0415
Area 1.282633498773E+18

Sphere

Radius = n
Volume 1.0927420804869E+27
Surface area 5.1305339950922E+18
Circumference 4014728871.0415

Square

Length = n
Perimeter 2555855780
Area 408274923009963025
Diagonal 903631476.88642

Cube

Length = n
Surface area 2449649538059778150
Volume 2.6087295545102E+26
Space diagonal 1106718016.9446

Equilateral Triangle

Length = n
Perimeter 1916891835
Area 1.7678822752738E+17
Altitude 553359008.47232

Triangular Pyramid

Length = n
Surface area 1.7678822752738E+17
Volume 3.0744172637932E+25
Height 301210492.29547