638961390 (number)

638961390 is an even 9-digits composite number following 638961389 and preceding 638961391. In scientific notation, it is written as 6.38961390 × 10^8. The sum of its digits is 45. It has a total of 6 prime factors and 64 positive divisors. There are 160974528 positive integers (up to 638961390) that are relatively prime to 638961390.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred sixty-one thousand three hundred ninety

Notation

Scientific notation 6.38961390 × 10^8
Engineering notation 6.38961390 × 10^6

Prime Factorization of 638961390

Prime Factorization 2 × 9 × 5 × 23 × 83 × 3719

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 638961390
Product of the distinct prime numbers

The prime factorization of 638961390 is 2 × 9 × 5 × 23 × 83 × 3719. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 8, 46, 45, 135, 779, 3838, 8750, 73350, 59986, 337872, 771041, 6458597, 5881917, 99105963, 44429876, 512905013, 890890606, 9640290539, 5673103688

Basic calculations (n = 638961390)

Multiplication

n×y
n×2 1277922780
n×3 1916884170
n×4 2555845560
n×5 3194806950

Division

n÷y
n÷2 319480695
n÷3 212987130
n÷3 159740347.5
n÷5 127792278

Exponentiation

ny
n2 408271657910732100
n3 2.6086982603625E+26
n4 1.6668574665318E+35
n5 1.065057563747E+44

Nth Root

y√n
2√n 25277.685613996
3√n 861.30745331927
4√n 158.98957706087
5√n 57.689254034322

Divisors of 638961390

1, 2, 5, 9, 10, 18, 23, 45, 46, 83, 90, 115, 166, 207, 230, 414, 415, 747, 830, 1035, 1494, 1909, 2070, 3719, 3735, 3818, 7438, 7470, 9545, 17181, 18595, 19090, 33471, 34362, 37190, 66942, 85537, 85905, 167355, 171074, 171810, 308677, 334710, 427685, 617354, 769833, 855370, 1539666, 1543385, 2778093, 3086770, 3849165, 5556186, 7099571, 7698330, 13890465, 14199142, 27780930, 35497855, 63896139, 70995710, 127792278, 319480695, 638961390

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638961389
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638961390 can be divided by 64 positive divisors. The sum of these divisors (counting 638961390) is 1, the average is 0.015625.

Base conversion 638961390

Base System Value
2 Binary 100110000101011100011011101110
3 Ternary 1122112022121020200
4 Quaternary 212011130123232
5 Quinary 2302033231030
6 Senary 143223054330
8 Octal 4605343356
10 Decimal 638961390
12 Duodecimal 159ba13a6
16 Hexadecimal 2615c6ee
20 Vigesimal 9jda39a
36 Base36 akf5ri

Cryptographic Hash Functions

md5 26c585e15cae40614e291ba6fc0c5024
sha1 11806479ade752cb2ef3e07e055e8562f6f4fb44
sha256 98238cade1dc52aad4ab64a7cfeebc8024a091848c5960d4809d43568959c68d
sha512 6b2ec8f8b938fa84ff0e7529dcbb0169a01f787767ffdb1bdd3efde905fdaa05521fa28849c7a886560959a9b2dfd898056be28692acc48bdf43914c2bb47163
ripemd-160 c868ff7c3c2ffc0745c24d490608925330454ee7

638961390 as geometric shapes

Circle

Radius = n
Diameter 1277922780
Circumference 4014712817.503
Area 1.2826232411613E+18

Sphere

Radius = n
Volume 1.092728972025E+27
Surface area 5.1304929646451E+18
Circumference 4014712817.503

Square

Length = n
Perimeter 2555845560
Area 408271657910732100
Diagonal 903627863.57076

Cube

Length = n
Surface area 2449629947464392600
Volume 2.6086982603625E+26
Space diagonal 1106713591.5548

Equilateral Triangle

Length = n
Perimeter 1916884170
Area 1.7678681369794E+17
Altitude 553356795.77742

Triangular Pyramid

Length = n
Surface area 1.7678681369794E+17
Volume 3.0743803832864E+25
Height 301209287.85692