638655438 (number)

638655438 is an even 9-digits composite number following 638655437 and preceding 638655439. In scientific notation, it is written as 6.38655438 × 10^8. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 212885144 positive integers (up to 638655438) that are relatively prime to 638655438.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million six hundred fifty-five thousand four hundred thirty-eight

Notation

Scientific notation 6.38655438 × 10^8
Engineering notation 6.38655438 × 10^6

Prime Factorization of 638655438

Prime Factorization 2 × 3 × 106442573

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638655438
Product of the distinct prime numbers

The prime factorization of 638655438 is 2 × 3 × 106442573. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 8, 91, 70, 348, 321, 1248, 4254, 15462, 84299, 547597, 636970, 3342505, 402390, 2189093, 50736002, 34720568, 569007463, 7253187869, 5665069477

Basic calculations (n = 638655438)

Multiplication

n×y
n×2 1277310876
n×3 1915966314
n×4 2554621752
n×5 3193277190

Division

n÷y
n÷2 319327719
n÷3 212885146
n÷3 159663859.5
n÷5 127731087.6

Exponentiation

ny
n2 407880768486971844
n3 2.6049527084982E+26
n4 1.6636672130152E+35
n5 1.0625101126145E+44

Nth Root

y√n
2√n 25271.633069511
3√n 861.16995893477
4√n 158.97054151481
5√n 57.683728340768

Divisors of 638655438

1, 2, 3, 6, 106442573, 212885146, 319327719, 638655438

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638655437
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638655438 can be divided by 8 positive divisors. The sum of these divisors (counting 638655438) is 1, the average is 0.125.

Base conversion 638655438

Base System Value
2 Binary 100110000100010001101111001110
3 Ternary 1122111202001120010
4 Quaternary 212010101233032
5 Quinary 2301443433223
6 Senary 143212334050
8 Octal 4604215716
10 Decimal 638655438
12 Duodecimal 159a74326
16 Hexadecimal 26111bce
20 Vigesimal 9jbbibi
36 Base36 ak8lou

Cryptographic Hash Functions

md5 f2d4cee6dbab9c95a1f33edb83c20bcd
sha1 6f52530688f0022500a7e1094a6c4673940b0821
sha256 7bb01adb01bbc8b6c52ae2118f6db51c6b21f41c69c41647e1361ba5d4dc6d76
sha512 b61aca1fd9958c16843f14bc927845f0a457f19944db17dd797a96a6418e26e9a4374b68efb98b1bd69c00fd863cd9dfde7b2d735677d690b92c3b66cff55ace
ripemd-160 fb49ff44f95744ae2836c9975755d7a3afa73760

638655438 as geometric shapes

Circle

Radius = n
Diameter 1277310876
Circumference 4012790464.3919
Area 1.2813952258192E+18

Sphere

Radius = n
Volume 1.0911600389289E+27
Surface area 5.1255809032769E+18
Circumference 4012790464.3919

Square

Length = n
Perimeter 2554621752
Area 407880768486971844
Diagonal 903195182.10293

Cube

Length = n
Surface area 2447284610921831064
Volume 2.6049527084982E+26
Space diagonal 1106183667.1462

Equilateral Triangle

Length = n
Perimeter 1915966314
Area 1.7661755361242E+17
Altitude 553091833.57308

Triangular Pyramid

Length = n
Surface area 1.7661755361242E+17
Volume 3.0699662080823E+25
Height 301065060.70098