638406940 (number)

638406940 is an even 9-digits composite number following 638406939 and preceding 638406941. In scientific notation, it is written as 6.38406940 × 10^8. The sum of its digits is 40. It has a total of 5 prime factors and 24 positive divisors. There are 251808512 positive integers (up to 638406940) that are relatively prime to 638406940.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million four hundred six thousand nine hundred forty

Notation

Scientific notation 6.38406940 × 10^8
Engineering notation 6.38406940 × 10^6

Prime Factorization of 638406940

Prime Factorization 2 × 2 × 535 × 269 × 1109

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 319203470
Product of the distinct prime numbers

The prime factorization of 638406940 is 2 × 2 × 535 × 269 × 1109. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 2, 93, 75, 701, 487, 8657, 5330, 12586, 34765, 689705, 888334, 6212140, 7379291, 41958590, 98526220, 339074969, 305137708, 1305999322, 5424317599

Basic calculations (n = 638406940)

Multiplication

n×y
n×2 1276813880
n×3 1915220820
n×4 2553627760
n×5 3192034700

Division

n÷y
n÷2 319203470
n÷3 212802313.33333
n÷3 159601735
n÷5 127681388

Exponentiation

ny
n2 407563421040163600
n3 2.6019131648218E+26
n4 1.6610794216996E+35
n5 1.0604446307042E+44

Nth Root

y√n
2√n 25266.716050963
3√n 861.05825197403
4√n 158.95507557471
5√n 57.67923874536

Divisors of 638406940

1, 2, 4, 269, 535, 538, 1070, 1076, 1109, 2140, 2218, 4436, 143915, 287830, 298321, 575660, 593315, 596642, 1186630, 1193284, 2373260, 159601735, 319203470, 638406940

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638406939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638406940 can be divided by 24 positive divisors. The sum of these divisors (counting 638406940) is 1, the average is 0.041666666666667.

Base conversion 638406940

Base System Value
2 Binary 100110000011010101000100011100
3 Ternary 1122111021102200111
4 Quaternary 212003111010130
5 Quinary 2301413010230
6 Senary 143203135404
8 Octal 4603250434
10 Decimal 638406940
12 Duodecimal 159974564
16 Hexadecimal 260d511c
20 Vigesimal 9ja0h70
36 Base36 ak39y4

Cryptographic Hash Functions

md5 05cacdc3ced6a508be8ba66e1cb3029e
sha1 e11deacbd127f84346565d489777f91dbeff4e78
sha256 083d1aadc849a077be84e12146df771c4357197b2747a9c574562739bc3c191a
sha512 af69b93a7121f57f0e1bf4ddc7a9eb4de8d3ca4eacd6d84df32d0c8c034b8f78936f9b1de3ac31e0ad43539d3203179d8158ede2dc687afb79e71f6bcc9e32c7
ripemd-160 9295e42a072cb9cc495b2e4ddf1d52dae36c15d0

638406940 as geometric shapes

Circle

Radius = n
Diameter 1276813880
Circumference 4011229105.4095
Area 1.2803982494117E+18

Sphere

Radius = n
Volume 1.089886837851E+27
Surface area 5.1215929976468E+18
Circumference 4011229105.4095

Square

Length = n
Perimeter 2553627760
Area 407563421040163600
Diagonal 902843752.86111

Cube

Length = n
Surface area 2445380526240981600
Volume 2.6019131648218E+26
Space diagonal 1105753255.9846

Equilateral Triangle

Length = n
Perimeter 1915220820
Area 1.7648013813704E+17
Altitude 552876627.99229

Triangular Pyramid

Length = n
Surface area 1.7648013813704E+17
Volume 3.0663840715068E+25
Height 300947917.62037