639968138 (number)

639968138 is an even 9-digits composite number following 639968137 and preceding 639968139. In scientific notation, it is written as 6.39968138 × 10^8. The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors. There are 319984068 positive integers (up to 639968138) that are relatively prime to 639968138.

Interesting facts

Basic properties

Name

Name six hundred thirty-nine million nine hundred sixty-eight thousand one hundred thirty-eight

Notation

Scientific notation 6.39968138 × 10^8
Engineering notation 6.39968138 × 10^6

Prime Factorization of 639968138

Prime Factorization 2 × 319984069

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 639968138
Product of the distinct prime numbers

The prime factorization of 639968138 is 2 × 319984069. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 4, 89, 16, 556, 167, 1333, 8313, 60057, 33530, 264383, 256918, 3352982, 2047529, 11760849, 30209723, 441609794, 582172377, 4053972688, 496898510

Basic calculations (n = 639968138)

Multiplication

n×y
n×2 1279936276
n×3 1919904414
n×4 2559872552
n×5 3199840690

Division

n÷y
n÷2 319984069
n÷3 213322712.66667
n÷3 159992034.5
n÷5 127993627.6

Exponentiation

ny
n2 409559217655187044
n3 2.6210484992353E+26
n4 1.6773875276633E+35
n5 1.0734745727831E+44

Nth Root

y√n
2√n 25297.591545442
3√n 861.75957481749
4√n 159.05216611364
5√n 57.707421633541

Divisors of 639968138

1, 2, 319984069, 639968138

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 -639968137
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 639968138 can be divided by 4 positive divisors. The sum of these divisors (counting 639968138) is 1, the average is 0.25.

Base conversion 639968138

Base System Value
2 Binary 100110001001010010001110001010
3 Ternary 1122121012202020122
4 Quaternary 212021102032022
5 Quinary 2302312440023
6 Senary 143300423242
8 Octal 4611221612
10 Decimal 639968138
12 Duodecimal 15a3a7b22
16 Hexadecimal 2625238a
20 Vigesimal 9jjg06i
36 Base36 al0qkq

Cryptographic Hash Functions

md5 e3f81cf97e1d07faa2a21515c22b75e3
sha1 243a389d8d114e61fb3fb80d5fe15170393ff800
sha256 bed421c14b788af61f02c5da639208850afca3575691410d389a3af11bc862bc
sha512 d7a7ae744419412571a92cca419a57476699858d6a5685ee423895a62c26fc0f3d17557e1d1ea6b623008d46bfb97331ba2b153e3aec32d09669927efde62a76
ripemd-160 20ea1d2b80cf5e1e90c0099931f47693e7677633

639968138 as geometric shapes

Circle

Radius = n
Diameter 1279936276
Circumference 4021038401.7447
Area 1.2866682293955E+18

Sphere

Radius = n
Volume 1.0979022279867E+27
Surface area 5.1466729175821E+18
Circumference 4021038401.7447

Square

Length = n
Perimeter 2559872552
Area 409559217655187044
Diagonal 905051620.24626

Cube

Length = n
Surface area 2457355305931122264
Volume 2.6210484992353E+26
Space diagonal 1108457330.2413

Equilateral Triangle

Length = n
Perimeter 1919904414
Area 1.7734434342174E+17
Altitude 554228665.12063

Triangular Pyramid

Length = n
Surface area 1.7734434342174E+17
Volume 3.0889352793801E+25
Height 301683873.41542