642509905 (number)

642509905 is an odd 9-digits composite number following 642509904 and preceding 642509906. In scientific notation, it is written as 6.42509905 × 10^8. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 512975856 positive integers (up to 642509905) that are relatively prime to 642509905.

Interesting facts

Basic properties

Name

Name six hundred forty-two million five hundred nine thousand nine hundred five

Notation

Scientific notation 6.42509905 × 10^8
Engineering notation 6.42509905 × 10^6

Prime Factorization of 642509905

Prime Factorization 5 × 499 × 257519

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 642509905
Product of the distinct prime numbers

The prime factorization of 642509905 is 5 × 499 × 257519. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 9, 26, 58, 725, 839, 2508, 3676, 85777, 50630, 323156, 276804, 2090041, 7913150, 58551384, 56417234, 727134393, 907494962, 249002302, 6443109953

Basic calculations (n = 642509905)

Multiplication

n×y
n×2 1285019810
n×3 1927529715
n×4 2570039620
n×5 3212549525

Division

n÷y
n÷2 321254952.5
n÷3 214169968.33333
n÷3 160627476.25
n÷5 128501981

Exponentiation

ny
n2 412818978023109025
n3 2.6524028235182E+26
n4 1.7041950861604E+35
n5 1.0949622229104E+44

Nth Root

y√n
2√n 25347.779094035
3√n 862.89895370978
4√n 159.20985865842
5√n 57.753188395609

Divisors of 642509905

1, 5, 499, 2495, 257519, 1287595, 128501981, 642509905

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 -642509904
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 642509905 can be divided by 8 positive divisors. The sum of these divisors (counting 642509905) is 1, the average is 0.125.

Base conversion 642509905

Base System Value
2 Binary 100110010010111110110001010001
3 Ternary 1122202222212220011
4 Quaternary 212102332301101
5 Quinary 2303440304110
6 Senary 143431114521
8 Octal 4622766121
10 Decimal 642509905
12 Duodecimal 15b212a41
16 Hexadecimal 264bec51
20 Vigesimal a0fdef5
36 Base36 amj7td

Cryptographic Hash Functions

md5 4aadd08643a9261f61ef90d265d8f745
sha1 25462f4e419e95fc4390063b71c7dc3a8523e150
sha256 d3bd7ad2ee0713026ffe37267301dc86564f4c4d907ff0ec53edcc3227bc7eb0
sha512 f8b14336c0e8da6d4733c023eb0c592894948eca696e00ff65f533cf4c5dba3cd453ff24ad38cd2ade9ccbaf5793afa84e36dcd0345822df0b9f3394121260f7
ripemd-160 4b33fb4794235a3a930a33e412ee285691bf0477

642509905 as geometric shapes

Circle

Radius = n
Diameter 1285019810
Circumference 4037008794.8134
Area 1.2969090686198E+18

Sphere

Radius = n
Volume 1.1110358966301E+27
Surface area 5.1876362744794E+18
Circumference 4037008794.8134

Square

Length = n
Perimeter 2570039620
Area 412818978023109025
Diagonal 908646221.61005

Cube

Length = n
Surface area 2476913868138654150
Volume 2.6524028235182E+26
Space diagonal 1112859799.8263

Equilateral Triangle

Length = n
Perimeter 1927529715
Area 1.7875586106617E+17
Altitude 556429899.91313

Triangular Pyramid

Length = n
Surface area 1.7875586106617E+17
Volume 3.1258867049135E+25
Height 302882073.87002