638432890 (number)

638432890 is an even 9-digits composite number following 638432889 and preceding 638432891. In scientific notation, it is written as 6.38432890 × 10^8. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 255373152 positive integers (up to 638432890) that are relatively prime to 638432890.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million four hundred thirty-two thousand eight hundred ninety

Notation

Scientific notation 6.38432890 × 10^8
Engineering notation 6.38432890 × 10^6

Prime Factorization of 638432890

Prime Factorization 2 × 5 × 63843289

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638432890
Product of the distinct prime numbers

The prime factorization of 638432890 is 2 × 5 × 63843289. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 9, 63, 19, 886, 852, 8598, 1258, 52979, 53187, 829982, 592371, 776972, 782037, 13346491, 74402699, 705575495, 78344341, 8642519977, 2843658181

Basic calculations (n = 638432890)

Multiplication

n×y
n×2 1276865780
n×3 1915298670
n×4 2553731560
n×5 3192164450

Division

n÷y
n÷2 319216445
n÷3 212810963.33333
n÷3 159608222.5
n÷5 127686578

Exponentiation

ny
n2 407596555033752100
n3 2.6022304658424E+26
n4 1.6613495167538E+35
n5 1.0606601732812E+44

Nth Root

y√n
2√n 25267.229567169
3√n 861.06991859684
4√n 158.95669085373
5√n 57.679707647502

Divisors of 638432890

1, 2, 5, 10, 63843289, 127686578, 319216445, 638432890

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 -638432889
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 638432890 can be divided by 8 positive divisors. The sum of these divisors (counting 638432890) is 1, the average is 0.125.

Base conversion 638432890

Base System Value
2 Binary 100110000011011011011001111010
3 Ternary 1122111022202021121
4 Quaternary 212003123121322
5 Quinary 2301414323030
6 Senary 143203455454
8 Octal 4603333172
10 Decimal 638432890
12 Duodecimal 15998758a
16 Hexadecimal 260db67a
20 Vigesimal 9ja424a
36 Base36 ak3tyy

Cryptographic Hash Functions

md5 586e7093ddaf404840604c1389729a84
sha1 57ecea373589c8bb7bcdb5359e9091e40c6d93bb
sha256 a8ff8817a1acaa00ec336394451dc347e54ff1b8492444a7bdb499e27c466b92
sha512 174dabb3099d8b950fdb599d6b8f92f96deaf05724155ede4c473383109bbb3c1f789880a891597b098454aad52ea70d167f1dbafacdc564ecab4c34bc8d0fac
ripemd-160 5914128843c3328c4bdc98b468859357f6bc6f6b

638432890 as geometric shapes

Circle

Radius = n
Diameter 1276865780
Circumference 4011392154.0682
Area 1.2805023429225E+18

Sphere

Radius = n
Volume 1.0900197485917E+27
Surface area 5.1220093716902E+18
Circumference 4011392154.0682

Square

Length = n
Perimeter 2553731560
Area 407596555033752100
Diagonal 902880451.70305

Cube

Length = n
Surface area 2445579330202512600
Volume 2.6022304658424E+26
Space diagonal 1105798202.703

Equilateral Triangle

Length = n
Perimeter 1915298670
Area 1.7649448557713E+17
Altitude 552899101.35152

Triangular Pyramid

Length = n
Surface area 1.7649448557713E+17
Volume 3.0667580143457E+25
Height 300960150.56768