638942018 (number)

638942018 is an even 9-digits composite number following 638942017 and preceding 638942019. In scientific notation, it is written as 6.38942018 × 10^8. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 268086000 positive integers (up to 638942018) that are relatively prime to 638942018.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred forty-two thousand eighteen

Notation

Scientific notation 6.38942018 × 10^8
Engineering notation 6.38942018 × 10^6

Prime Factorization of 638942018

Prime Factorization 2 × 11 × 169 × 171851

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638942018
Product of the distinct prime numbers

The prime factorization of 638942018 is 2 × 11 × 169 × 171851. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 38, 40, 911, 156, 9725, 5943, 60520, 27767, 797993, 458688, 785302, 3464391, 65728132, 41152648, 3767140, 883878565, 3524747135, 8452625036

Basic calculations (n = 638942018)

Multiplication

n×y
n×2 1277884036
n×3 1916826054
n×4 2555768072
n×5 3194710090

Division

n÷y
n÷2 319471009
n÷3 212980672.66667
n÷3 159735504.5
n÷5 127788403.6

Exponentiation

ny
n2 408246902365912324
n3 2.6084609963992E+26
n4 1.6666553329136E+35
n5 1.0648961217223E+44

Nth Root

y√n
2√n 25277.302427277
3√n 861.2987488723
4√n 158.98837198763
5√n 57.688904226086

Divisors of 638942018

1, 2, 11, 22, 169, 338, 1859, 3718, 171851, 343702, 1890361, 3780722, 29042819, 58085638, 319471009, 638942018

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638942017
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638942018 can be divided by 16 positive divisors. The sum of these divisors (counting 638942018) is 1, the average is 0.0625.

Base conversion 638942018

Base System Value
2 Binary 100110000101010111101101000010
3 Ternary 1122112021121200012
4 Quaternary 212011113231002
5 Quinary 2302032121033
6 Senary 143222424522
8 Octal 4605275502
10 Decimal 638942018
12 Duodecimal 159b92142
16 Hexadecimal 26157b42
20 Vigesimal 9jd7f0i
36 Base36 akeqte

Cryptographic Hash Functions

md5 850fe826302af657a4572b7dae064d80
sha1 8bca379a856e7de396ef764b70e4009f8931abbf
sha256 96763b10b77d8a6864613994ff3e645e4031bf3cf8dd4411bb8e676e4e6763f8
sha512 11d82bd9ad7a723ac6b1ef1f37cff34f4c730a927758ac66043e892131e682486c643bcf5ccb1c10ddef4e09b8355eeed5189991b702fcdb4986392237c77deb
ripemd-160 20e28eab13457d1f9fdefa382e7a5c7afe437e9f

638942018 as geometric shapes

Circle

Radius = n
Diameter 1277884036
Circumference 4014591099.6373
Area 1.2825454693235E+18

Sphere

Radius = n
Volume 1.0926295871285E+27
Surface area 5.1301818772942E+18
Circumference 4014591099.6373

Square

Length = n
Perimeter 2555768072
Area 408246902365912324
Diagonal 903600467.42563

Cube

Length = n
Surface area 2449481414195473944
Volume 2.6084609963992E+26
Space diagonal 1106680038.2666

Equilateral Triangle

Length = n
Perimeter 1916826054
Area 1.7677609423259E+17
Altitude 553340019.13329

Triangular Pyramid

Length = n
Surface area 1.7677609423259E+17
Volume 3.0741007650242E+25
Height 301200155.80854