638640217 (number)

638640217 is an odd 9-digits composite number following 638640216 and preceding 638640218. In scientific notation, it is written as 6.38640217 × 10^8. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 605027556 positive integers (up to 638640217) that are relatively prime to 638640217.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred forty thousand two hundred seventeen

Notation

Scientific notation 6.38640217 × 10^8
Engineering notation 6.38640217 × 10^6

Prime Factorization of 638640217

Prime Factorization 19 × 33612643

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638640217
Product of the distinct prime numbers

The prime factorization of 638640217 is 19 × 33612643. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 2, 22, 29, 492, 829, 8803, 5040, 39789, 65533, 810513, 924972, 3229609, 9992987, 10570378, 39567536, 543339129, 876369543, 520563743, 6544617845

Basic calculations (n = 638640217)

Multiplication

n×y
n×2 1277280434
n×3 1915920651
n×4 2554560868
n×5 3193201085

Division

n÷y
n÷2 319320108.5
n÷3 212880072.33333
n÷3 159660054.25
n÷5 127728043.4

Exponentiation

ny
n2 407861326769807089
n3 2.6047664623418E+26
n4 1.6635086187443E+35
n5 1.0623835052562E+44

Nth Root

y√n
2√n 25271.331919786
3√n 861.16311749294
4√n 158.96959432478
5√n 57.683453384243

Divisors of 638640217

1, 19, 33612643, 638640217

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 -638640216
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 638640217 can be divided by 4 positive divisors. The sum of these divisors (counting 638640217) is 1, the average is 0.25.

Base conversion 638640217

Base System Value
2 Binary 100110000100001110000001011001
3 Ternary 1122111201021200101
4 Quaternary 212010032001121
5 Quinary 2301442441332
6 Senary 143212135401
8 Octal 4604160131
10 Decimal 638640217
12 Duodecimal 159a67561
16 Hexadecimal 2610e059
20 Vigesimal 9jba0ah
36 Base36 ak89y1

Cryptographic Hash Functions

md5 11a41c78dff6766095223bc310fe5c37
sha1 34454c7ec2a3b3dc9ffa46573e51e03e7f65ec31
sha256 3042d3698528140ceb39336c21dc5bca6a0583e6c377f7802097c1ec7c05f410
sha512 a4a847eb3230af8db8493842eb70262a93541e231a27ed178eccb220b566557c7044a6cefd712c32ce3d2442d4ab0254e3f70a96fd6c6733e60fa6e38a6d087e
ripemd-160 37890503b2a8882d6a6affcebdadbc92e449edcb

638640217 as geometric shapes

Circle

Radius = n
Diameter 1277280434
Circumference 4012694828.0284
Area 1.2813341478634E+18

Sphere

Radius = n
Volume 1.0910820243213E+27
Surface area 5.1253365914536E+18
Circumference 4012694828.0284

Square

Length = n
Perimeter 2554560868
Area 407861326769807089
Diagonal 903173656.3583

Cube

Length = n
Surface area 2447167960618842534
Volume 2.6047664623418E+26
Space diagonal 1106157303.6008

Equilateral Triangle

Length = n
Perimeter 1915920651
Area 1.7660913510194E+17
Altitude 553078651.80041

Triangular Pyramid

Length = n
Surface area 1.7660913510194E+17
Volume 3.0697467148819E+25
Height 301057885.45277