638207894 (number)

638207894 is an even 9-digits composite number following 638207893 and preceding 638207895. In scientific notation, it is written as 6.38207894 × 10^8. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 310163904 positive integers (up to 638207894) that are relatively prime to 638207894.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million two hundred seven thousand eight hundred ninety-four

Notation

Scientific notation 6.38207894 × 10^8
Engineering notation 6.38207894 × 10^6

Prime Factorization of 638207894

Prime Factorization 2 × 37 × 1129 × 7639

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638207894
Product of the distinct prime numbers

The prime factorization of 638207894 is 2 × 37 × 1129 × 7639. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 29, 75, 119, 172, 9476, 3233, 26405, 46895, 36764, 970729, 6733682, 7040057, 91661050, 77399917, 389503418, 417654654, 1949852243, 4467029653

Basic calculations (n = 638207894)

Multiplication

n×y
n×2 1276415788
n×3 1914623682
n×4 2552831576
n×5 3191039470

Division

n÷y
n÷2 319103947
n÷3 212735964.66667
n÷3 159551973.5
n÷5 127641578.8

Exponentiation

ny
n2 407309315963915236
n3 2.5994802074791E+26
n4 1.6590087887099E+35
n5 1.0587925051701E+44

Nth Root

y√n
2√n 25262.776846578
3√n 860.96875419161
4√n 158.94268415557
5√n 57.675641587145

Divisors of 638207894

1, 2, 37, 74, 1129, 2258, 7639, 15278, 41773, 83546, 282643, 565286, 8624431, 17248862, 319103947, 638207894

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 -638207893
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 638207894 can be divided by 16 positive divisors. The sum of these divisors (counting 638207894) is 1, the average is 0.0625.

Base conversion 638207894

Base System Value
2 Binary 100110000010100100011110010110
3 Ternary 1122110220022122102
4 Quaternary 212002210132112
5 Quinary 2301340123034
6 Senary 143155002102
8 Octal 4602443626
10 Decimal 638207894
12 Duodecimal 159899332
16 Hexadecimal 260a4796
20 Vigesimal 9j8fjee
36 Base36 ajz0d2

Cryptographic Hash Functions

md5 af1ac0856ead016a4cae40b6e4f7e6f7
sha1 e04f594619e91a6956110f3cb5ee649ee5f99db9
sha256 bc6c6e975ac0e4836ceb0659e9ab876ab7321807418d922b2da322ecd528d8a7
sha512 a0b749bc73a2e94adf8a1b58671f503b833ede2d0f9b51012ec947a505dd771296096e4097b803fa95800cd0343b670911d4e1542751618f55458cb54e5a957f
ripemd-160 d5ee01a90e4ae9c2d0ce5d95389fb619e908173f

638207894 as geometric shapes

Circle

Radius = n
Diameter 1276415788
Circumference 4009978462.5068
Area 1.2795999547709E+18

Sphere

Radius = n
Volume 1.0888677230625E+27
Surface area 5.1183998190837E+18
Circumference 4009978462.5068

Square

Length = n
Perimeter 2552831576
Area 407309315963915236
Diagonal 902562259.30837

Cube

Length = n
Surface area 2443855895783491416
Volume 2.5994802074791E+26
Space diagonal 1105408498.1995

Equilateral Triangle

Length = n
Perimeter 1914623682
Area 1.7637010741141E+17
Altitude 552704249.09977

Triangular Pyramid

Length = n
Surface area 1.7637010741141E+17
Volume 3.0635168037812E+25
Height 300854086.43612