638389946 (number)

638389946 is an even 9-digits composite number following 638389945 and preceding 638389947. In scientific notation, it is written as 6.38389946 × 10^8. The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors. There are 317161728 positive integers (up to 638389946) that are relatively prime to 638389946.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million three hundred eighty-nine thousand nine hundred forty-six

Notation

Scientific notation 6.38389946 × 10^8
Engineering notation 6.38389946 × 10^6

Prime Factorization of 638389946

Prime Factorization 2 × 157 × 2033089

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638389946
Product of the distinct prime numbers

The prime factorization of 638389946 is 2 × 157 × 2033089. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638389946)

Multiplication

n×y
n×2 1276779892
n×3 1915169838
n×4 2553559784
n×5 3191949730

Division

n÷y
n÷2 319194973
n÷3 212796648.66667
n÷3 159597486.5
n÷5 127677989.2

Exponentiation

ny
n2 407541723153882916
n3 2.6017053863695E+26
n4 1.6609025611124E+35
n5 1.0603034962998E+44

Nth Root

y√n
2√n 25266.379756506
3√n 861.05061162592
4√n 158.95401774257
5√n 57.67893166492

Divisors of 638389946

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 -638389945
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 638389946 can be divided by 8 positive divisors. The sum of these divisors (counting 638389946) is 1, the average is 0.125.

Base conversion 638389946

Base System Value
2 Binary 100110000011010000111010111010
3 Ternary 1122111020120101002
4 Quaternary 212003100322322
5 Quinary 2301411434241
6 Senary 143202525002
8 Octal 4603207272
10 Decimal 638389946
12 Duodecimal 159966762
16 Hexadecimal 260d0eba
20 Vigesimal 9j9ieh6
36 Base36 ak2wu2

Cryptographic Hash Functions

md5 9dcfa857c8d9041f416a1a3667e085c3
sha1 b10b3a481dde48fbf88c986d498e7f78d7ec5c92
sha256 7b6fce3f8b22137cb065a2e8a8e5db12660df41eff85a33df3172cd6b19318c4
sha512 ecaf1df26cad0d52dee5208cd5e95d9642c959e66052d44764df2790de758cc69de5b7b1a65610bba5879b508c5f9329869a340fe52db86bf3ad0be845182d1f
ripemd-160 8a4628545b9d9bdbd408ae0042788bae82bffaaa

638389946 as geometric shapes

Circle

Radius = n
Diameter 1276779892
Circumference 4011122328.9584
Area 1.2803300834916E+18

Sphere

Radius = n
Volume 1.0897998038165E+27
Surface area 5.1213203339663E+18
Circumference 4011122328.9584

Square

Length = n
Perimeter 2553559784
Area 407541723153882916
Diagonal 902819719.71583

Cube

Length = n
Surface area 2445250338923297496
Volume 2.6017053863695E+26
Space diagonal 1105723821.5132

Equilateral Triangle

Length = n
Perimeter 1915169838
Area 1.7647074267667E+17
Altitude 552861910.75658

Triangular Pyramid

Length = n
Surface area 1.7647074267667E+17
Volume 3.0661392022525E+25
Height 300939906.57194