638021245 (number)

638021245 is an odd 9-digits composite number following 638021244 and preceding 638021246. In scientific notation, it is written as 6.38021245 × 10^8. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 510416992 positive integers (up to 638021245) that are relatively prime to 638021245.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million twenty-one thousand two hundred forty-five

Notation

Scientific notation 6.38021245 × 10^8
Engineering notation 6.38021245 × 10^6

Prime Factorization of 638021245

Prime Factorization 5 × 127604249

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638021245
Product of the distinct prime numbers

The prime factorization of 638021245 is 5 × 127604249. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 2, 92, 39, 758, 187, 1790, 203, 75401, 16307, 87273, 484734, 2916770, 9609491, 84277609, 90111851, 897355181, 66181366, 3090173549, 1895086922

Basic calculations (n = 638021245)

Multiplication

n×y
n×2 1276042490
n×3 1914063735
n×4 2552084980
n×5 3190106225

Division

n÷y
n÷2 319010622.5
n÷3 212673748.33333
n÷3 159505311.25
n÷5 127604249

Exponentiation

ny
n2 407071109071350025
n3 2.5972001581323E+26
n4 1.6570688784058E+35
n5 1.0572451488512E+44

Nth Root

y√n
2√n 25259.082425931
3√n 860.88481361
4√n 158.93106186624
5√n 57.672267651947

Divisors of 638021245

1, 5, 127604249, 638021245

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638021244
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638021245 can be divided by 4 positive divisors. The sum of these divisors (counting 638021245) is 1, the average is 0.25.

Base conversion 638021245

Base System Value
2 Binary 100110000001110110111001111101
3 Ternary 1122110112211121111
4 Quaternary 212001312321331
5 Quinary 2301313134440
6 Senary 143151002021
8 Octal 4601667175
10 Decimal 638021245
12 Duodecimal 159809311
16 Hexadecimal 26076e7d
20 Vigesimal 9j7cd25
36 Base36 ajv0cd

Cryptographic Hash Functions

md5 4ed78e04bdee926a65d761d221239fd8
sha1 9feac0aaac9d2a0e1c93f60d78b1bc9de13a4308
sha256 53ec72089a335c4f4cf267f1e1db48ec55fd92c68c77dda0b4310f35971561c1
sha512 56c253230f6ca898750b90fc029dde86425f4236ff7faa0aa8cbda48a6835091949f842170897ed4aac3ec8bad18234930ed6892b83a5f1dd7b06437941e9c5f
ripemd-160 841add783d71ad8832b67059a9231cdbd61c00d3

638021245 as geometric shapes

Circle

Radius = n
Diameter 1276042490
Circumference 4008805712.2524
Area 1.2788516057472E+18

Sphere

Radius = n
Volume 1.0879126582254E+27
Surface area 5.1154064229888E+18
Circumference 4008805712.2524

Square

Length = n
Perimeter 2552084980
Area 407071109071350025
Diagonal 902298297.76117

Cube

Length = n
Surface area 2442426654428100150
Volume 2.5972001581323E+26
Space diagonal 1105085212.6484

Equilateral Triangle

Length = n
Perimeter 1914063735
Area 1.7626696080125E+17
Altitude 552542606.32418

Triangular Pyramid

Length = n
Surface area 1.7626696080125E+17
Volume 3.0608297398569E+25
Height 300766099.25372