638749968 (number)

638749968 is an even 9-digits composite number following 638749967 and preceding 638749969. In scientific notation, it is written as 6.38749968 × 10^8. The sum of its digits is 60. It has a total of 6 prime factors and 20 positive divisors. There are 210847872 positive integers (up to 638749968) that are relatively prime to 638749968.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million seven hundred forty-nine thousand nine hundred sixty-eight

Notation

Scientific notation 6.38749968 × 10^8
Engineering notation 6.38749968 × 10^6

Prime Factorization of 638749968

Prime Factorization 2 × 2 × 2 × 2 × 309 × 129197

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 79843746
Product of the distinct prime numbers

The prime factorization of 638749968 is 2 × 2 × 2 × 2 × 309 × 129197. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 7, 84, 29, 737, 528, 478, 4559, 79495, 95675, 761405, 906307, 6820024, 2431898, 13946549, 50518873, 981370156, 390980374, 6691008390, 8764752277

Basic calculations (n = 638749968)

Multiplication

n×y
n×2 1277499936
n×3 1916249904
n×4 2554999872
n×5 3193749840

Division

n÷y
n÷2 319374984
n÷3 212916656
n÷3 159687492
n÷5 127749993.6

Exponentiation

ny
n2 408001521620001024
n3 2.6061095887873E+26
n4 1.6646524164424E+35
n5 1.0632966777337E+44

Nth Root

y√n
2√n 25273.503279126
3√n 861.21244526635
4√n 158.97642365812
5√n 57.685435840526

Divisors of 638749968

1, 2, 4, 8, 16, 309, 618, 1236, 2472, 4944, 129197, 258394, 516788, 1033576, 2067152, 39921873, 79843746, 159687492, 319374984, 638749968

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638749967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638749968 can be divided by 20 positive divisors. The sum of these divisors (counting 638749968) is 1, the average is 0.05.

Base conversion 638749968

Base System Value
2 Binary 100110000100101000110100010000
3 Ternary 1122111220212020020
4 Quaternary 212010220310100
5 Quinary 2302004444333
6 Senary 143214343440
8 Octal 4604506420
10 Decimal 638749968
12 Duodecimal 159abab80
16 Hexadecimal 26128d10
20 Vigesimal 9jc3ei8
36 Base36 akammo

Cryptographic Hash Functions

md5 3dd33d03fdde99fb4a88a0407052060f
sha1 d7bd5fa6192d6696a9684b725732098b7ac2cf3d
sha256 ac90ecfb5b09b9a1eb99618b71d6803e360475376f6ee79c9fc2377e56ac6666
sha512 1993b263014bd890db10e50ff5505146e344b31f56b37711bd333a39891c34dead32c63d7f0bc74d08a2a755bccec70fe587fc7fed99883d6e8017b0f238e300
ripemd-160 b76c0f6b71a61fb3709c5fd85932743e166e4f07

638749968 as geometric shapes

Circle

Radius = n
Diameter 1277499936
Circumference 4013384413.899
Area 1.2817745829749E+18

Sphere

Radius = n
Volume 1.0916446318112E+27
Surface area 5.1270983318994E+18
Circumference 4013384413.899

Square

Length = n
Perimeter 2554999872
Area 408001521620001024
Diagonal 903328867.71098

Cube

Length = n
Surface area 2448009129720006144
Volume 2.6061095887873E+26
Space diagonal 1106347397.909

Equilateral Triangle

Length = n
Perimeter 1916249904
Area 1.7666984125281E+17
Altitude 553173698.9545

Triangular Pyramid

Length = n
Surface area 1.7666984125281E+17
Volume 3.0713296045779E+25
Height 301109622.57033