638993855 (number)

638993855 is an odd 9-digits composite number following 638993854 and preceding 638993856. In scientific notation, it is written as 6.38993855 × 10^8. The sum of its digits is 56. It has a total of 4 prime factors and 16 positive divisors. There are 493474080 positive integers (up to 638993855) that are relatively prime to 638993855.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-three thousand eight hundred fifty-five

Notation

Scientific notation 6.38993855 × 10^8
Engineering notation 6.38993855 × 10^6

Prime Factorization of 638993855

Prime Factorization 5 × 31 × 419 × 9839

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638993855
Product of the distinct prime numbers

The prime factorization of 638993855 is 5 × 31 × 419 × 9839. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 52, 72, 346, 590, 8724, 1203, 14237, 44845, 671119, 743041, 5254468, 4834017, 50709547, 85652713, 635013404, 277951334, 3683895271, 9362489917

Basic calculations (n = 638993855)

Multiplication

n×y
n×2 1277987710
n×3 1916981565
n×4 2555975420
n×5 3194969275

Division

n÷y
n÷2 319496927.5
n÷3 212997951.66667
n÷3 159748463.75
n÷5 127798771

Exponentiation

ny
n2 408313146727761025
n3 2.6090959167475E+26
n4 1.6671962579073E+35
n5 1.0653281638817E+44

Nth Root

y√n
2√n 25278.327773015
3√n 861.32204046718
4√n 158.99159654842
5√n 57.689840249263

Divisors of 638993855

1, 5, 31, 155, 419, 2095, 9839, 12989, 49195, 64945, 305009, 1525045, 4122541, 20612705, 127798771, 638993855

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 -638993854
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 638993855 can be divided by 16 positive divisors. The sum of these divisors (counting 638993855) is 1, the average is 0.0625.

Base conversion 638993855

Base System Value
2 Binary 100110000101100100010110111111
3 Ternary 1122112101020210002
4 Quaternary 212011210112333
5 Quinary 2302040300410
6 Senary 143223504515
8 Octal 4605442677
10 Decimal 638993855
12 Duodecimal 159bb813b
16 Hexadecimal 261645bf
20 Vigesimal 9jde4cf
36 Base36 akfutb

Cryptographic Hash Functions

md5 566ebfd678bbae7a7d84507cbe9ac832
sha1 99413b871c144c7e2d067d12ad36e921c2374067
sha256 88af6150841f865dfb666b4107ee25145a2c94c493db0f826afe1c0594433199
sha512 145671f2414cfdeedbe926b29ce9432118d919c0139908fa15390b5fc14ff5bdf07771ab45596a5dac20cd1aced9d16f2a08abaf4d547a8602cfa7763e0393c2
ripemd-160 e299b60b3ff2e6bb9c34e65a0df571859c02beac

638993855 as geometric shapes

Circle

Radius = n
Diameter 1277987710
Circumference 4014916801.114
Area 1.2827535821241E+18

Sphere

Radius = n
Volume 1.092895541942E+27
Surface area 5.1310143284963E+18
Circumference 4014916801.114

Square

Length = n
Perimeter 2555975420
Area 408313146727761025
Diagonal 903673776.01407

Cube

Length = n
Surface area 2449878880366566150
Volume 2.6090959167475E+26
Space diagonal 1106769822.5843

Equilateral Triangle

Length = n
Perimeter 1916981565
Area 1.768047788827E+17
Altitude 553384911.29215

Triangular Pyramid

Length = n
Surface area 1.768047788827E+17
Volume 3.0748490258305E+25
Height 301224592.00469