638994913 (number)

638994913 is an odd 9-digits composite number following 638994912 and preceding 638994914. In scientific notation, it is written as 6.38994913 × 10^8. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 635751088 positive integers (up to 638994913) that are relatively prime to 638994913.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-four thousand nine hundred thirteen

Notation

Scientific notation 6.38994913 × 10^8
Engineering notation 6.38994913 × 10^6

Prime Factorization of 638994913

Prime Factorization 197 × 3243629

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638994913
Product of the distinct prime numbers

The prime factorization of 638994913 is 197 × 3243629. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638994913)

Multiplication

n×y
n×2 1277989826
n×3 1916984739
n×4 2555979652
n×5 3194974565

Division

n÷y
n÷2 319497456.5
n÷3 212998304.33333
n÷3 159748728.25
n÷5 127798982.6

Exponentiation

ny
n2 408314498839877569
n3 2.6091088766283E+26
n4 1.6672072996286E+35
n5 1.0653369833791E+44

Nth Root

y√n
2√n 25278.348700024
3√n 861.32251583858
4√n 158.99166236009
5√n 57.689859352987

Divisors of 638994913

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 -638994912
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 638994913 can be divided by 4 positive divisors. The sum of these divisors (counting 638994913) is 1, the average is 0.25.

Base conversion 638994913

Base System Value
2 Binary 100110000101100100100111100001
3 Ternary 1122112101022020021
4 Quaternary 212011210213201
5 Quinary 2302040314123
6 Senary 143223513441
8 Octal 4605444741
10 Decimal 638994913
12 Duodecimal 159bb8881
16 Hexadecimal 261649e1
20 Vigesimal 9jde75d
36 Base36 akfvmp

Cryptographic Hash Functions

md5 f400629b188e2abe074f79c5e3a5c021
sha1 a5dc4686c580c77111deb89160fbc820c8d3cda1
sha256 543f485b4adba44fc1017ca11d3d35d47b1914d21744a459b2d55aae5bc1b52b
sha512 65a55e439d28c3920173968c693bb6b6e6584f103c62a39b30f04287bbb69133d6ba33b1703ad09cda5d59b7cd7cb862bc8244a464fafffc9638bbff74e222d0
ripemd-160 0be66e5ef4bae2a657c8b0763a003423ef27fd13

638994913 as geometric shapes

Circle

Radius = n
Diameter 1277989826
Circumference 4014923448.7241
Area 1.2827578299096E+18

Sphere

Radius = n
Volume 1.0929009705642E+27
Surface area 5.1310313196382E+18
Circumference 4014923448.7241

Square

Length = n
Perimeter 2555979652
Area 408314498839877569
Diagonal 903675272.25202

Cube

Length = n
Surface area 2449886993039265414
Volume 2.6091088766283E+26
Space diagonal 1106771655.0941

Equilateral Triangle

Length = n
Perimeter 1916984739
Area 1.7680536436442E+17
Altitude 553385827.54703

Triangular Pyramid

Length = n
Surface area 1.7680536436442E+17
Volume 3.0748642991964E+25
Height 301225090.75067