639778821 (number)

639778821 is an odd 9-digits composite number following 639778820 and preceding 639778822. In scientific notation, it is written as 6.39778821 × 10^8. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 386620400 positive integers (up to 639778821) that are relatively prime to 639778821.

Interesting facts

Basic properties

Name

Name six hundred thirty-nine million seven hundred seventy-eight thousand eight hundred twenty-one

Notation

Scientific notation 6.39778821 × 10^8
Engineering notation 6.39778821 × 10^6

Prime Factorization of 639778821

Prime Factorization 3 × 11 × 347 × 55871

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 639778821
Product of the distinct prime numbers

The prime factorization of 639778821 is 3 × 11 × 347 × 55871. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 3, 73, 36, 698, 543, 207, 7012, 58513, 70075, 821997, 119590, 3363877, 9190820, 17826856, 92643793, 108034742, 653459760, 4470029294, 6119785927

Basic calculations (n = 639778821)

Multiplication

n×y
n×2 1279557642
n×3 1919336463
n×4 2559115284
n×5 3198894105

Division

n÷y
n÷2 319889410.5
n÷3 213259607
n÷3 159944705.25
n÷5 127955764.2

Exponentiation

ny
n2 409316939800150041
n3 2.6187230916067E+26
n4 1.6754035720736E+35
n5 1.0718877220404E+44

Nth Root

y√n
2√n 25293.849469782
3√n 861.67459046812
4√n 159.04040200459
5√n 57.70400699826

Divisors of 639778821

1, 3, 11, 33, 347, 1041, 3817, 11451, 55871, 167613, 614581, 1843743, 19387237, 58161711, 213259607, 639778821

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 -639778820
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 639778821 can be divided by 16 positive divisors. The sum of these divisors (counting 639778821) is 1, the average is 0.0625.

Base conversion 639778821

Base System Value
2 Binary 100110001000100100000000000101
3 Ternary 1122120212010112220
4 Quaternary 212020210000011
5 Quinary 2302240410241
6 Senary 143252402553
8 Octal 4610440005
10 Decimal 639778821
12 Duodecimal 15a316459
16 Hexadecimal 26224005
20 Vigesimal 9jic711
36 Base36 akwohx

Cryptographic Hash Functions

md5 8c00dc51b27955bf8e195b52df7dec8b
sha1 e3f134ee0351e5fb2533fb947f16f43a69532721
sha256 eeb492de6047b650f8c8dd5f1d1a57cc89524059c4bd00cdc0e0be271e5bd815
sha512 70d18830038aeac78f12fb9f2d578de63c19604ab817d0b124f6ee19ffaca9d52861ccc05e368e4b4d98baf4d7976a4ca03521d1ac338329f6469ed3a865684c
ripemd-160 7805614f18a1cc9bce07a5439b5c70cfc857a89f

639778821 as geometric shapes

Circle

Radius = n
Diameter 1279557642
Circumference 4019848887.9519
Area 1.285907091066E+18

Sphere

Radius = n
Volume 1.096928163517E+27
Surface area 5.143628364264E+18
Circumference 4019848887.9519

Square

Length = n
Perimeter 2559115284
Area 409316939800150041
Diagonal 904783885.57727

Cube

Length = n
Surface area 2455901638800900246
Volume 2.6187230916067E+26
Space diagonal 1108129423.5785

Equilateral Triangle

Length = n
Perimeter 1919336463
Area 1.7723943403312E+17
Altitude 554064711.78926

Triangular Pyramid

Length = n
Surface area 1.7723943403312E+17
Volume 3.0861947602081E+25
Height 301594628.52576