638993605 (number)

638993605 is an odd 9-digits composite number following 638993604 and preceding 638993606. In scientific notation, it is written as 6.38993605 × 10^8. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 502814400 positive integers (up to 638993605) that are relatively prime to 638993605.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-three thousand six hundred five

Notation

Scientific notation 6.38993605 × 10^8
Engineering notation 6.38993605 × 10^6

Prime Factorization of 638993605

Prime Factorization 5 × 61 × 2095061

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638993605
Product of the distinct prime numbers

The prime factorization of 638993605 is 5 × 61 × 2095061. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 9, 71, 23, 873, 823, 5791, 4099, 91944, 16110, 58596, 826261, 9890670, 4927921, 95835889, 89834803, 287744506, 725341980, 636627206, 4616251646

Basic calculations (n = 638993605)

Multiplication

n×y
n×2 1277987210
n×3 1916980815
n×4 2555974420
n×5 3194968025

Division

n÷y
n÷2 319496802.5
n÷3 212997868.33333
n÷3 159748401.25
n÷5 127798721

Exponentiation

ny
n2 408312827230896025
n3 2.6090928544001E+26
n4 1.6671936488129E+35
n5 1.065326079888E+44

Nth Root

y√n
2√n 25278.322828068
3√n 861.32192813927
4√n 158.99158099745
5√n 57.689835735147

Divisors of 638993605

1, 5, 61, 305, 2095061, 10475305, 127798721, 638993605

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 -638993604
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 638993605 can be divided by 8 positive divisors. The sum of these divisors (counting 638993605) is 1, the average is 0.125.

Base conversion 638993605

Base System Value
2 Binary 100110000101100100010011000101
3 Ternary 1122112101020102211
4 Quaternary 212011210103011
5 Quinary 2302040243410
6 Senary 143223503421
8 Octal 4605442305
10 Decimal 638993605
12 Duodecimal 159bb7b71
16 Hexadecimal 261644c5
20 Vigesimal 9jde405
36 Base36 akfumd

Cryptographic Hash Functions

md5 1e85edac87a89cc558e594e3cb6a710d
sha1 b0312415427cffb08c28869c236f40ef9c45da14
sha256 fc3739fb4a0821d1f5fa786d504b1971af37bf49b02de584577365c2c7b9ffdb
sha512 8f1f6c18b7d2a083f39bb0a8d87416fee083dcba67963241a8bb7c6b4a286f5e8fd54af06e1b70c43cb87f8ea651c9d0d4eb5bca77f4e4b4a234845daf89f0f2
ripemd-160 5f858cba8eba5c2202035dcee3b0106e576cdfc9

638993605 as geometric shapes

Circle

Radius = n
Diameter 1277987210
Circumference 4014915230.3177
Area 1.2827525783951E+18

Sphere

Radius = n
Volume 1.0928942591889E+27
Surface area 5.1310103135802E+18
Circumference 4014915230.3177

Square

Length = n
Perimeter 2555974420
Area 408312827230896025
Diagonal 903673422.46068

Cube

Length = n
Surface area 2449876963385376150
Volume 2.6090928544001E+26
Space diagonal 1106769389.5716

Equilateral Triangle

Length = n
Perimeter 1916980815
Area 1.768046405365E+17
Altitude 553384694.7858

Triangular Pyramid

Length = n
Surface area 1.768046405365E+17
Volume 3.0748454168195E+25
Height 301224474.15356