668581618 (number)

668581618 is an even 9-digits composite number following 668581617 and preceding 668581619. In scientific notation, it is written as 6.68581618 × 10^8. The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors. There are 316457856 positive integers (up to 668581618) that are relatively prime to 668581618.

Interesting facts

Basic properties

Name

Name six hundred sixty-eight million five hundred eighty-one thousand six hundred eighteen

Notation

Scientific notation 6.68581618 × 10^8
Engineering notation 6.68581618 × 10^6

Prime Factorization of 668581618

Prime Factorization 2 × 23 × 97 × 149839

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 668581618
Product of the distinct prime numbers

The prime factorization of 668581618 is 2 × 23 × 97 × 149839. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 89, 97, 874, 662, 3668, 1816, 33512, 6935, 169733, 930320, 3519735, 3987654, 83855765, 28738066, 505332604, 406178539, 3938008691, 2056840962

Basic calculations (n = 668581618)

Multiplication

n×y
n×2 1337163236
n×3 2005744854
n×4 2674326472
n×5 3342908090

Division

n÷y
n÷2 334290809
n÷3 222860539.33333
n÷3 167145404.5
n÷5 133716323.6

Exponentiation

ny
n2 447001379927497924
n3 2.9885690584016E+26
n4 1.9981023365709E+35
n5 1.3358944931141E+44

Nth Root

y√n
2√n 25856.945256546
3√n 874.41609718641
4√n 160.800949178
5√n 58.214461756587

Divisors of 668581618

1, 2, 23, 46, 97, 194, 2231, 4462, 149839, 299678, 3446297, 6892594, 14534383, 29068766, 334290809, 668581618

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -668581617
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 668581618 can be divided by 16 positive divisors. The sum of these divisors (counting 668581618) is 1, the average is 0.0625.

Base conversion 668581618

Base System Value
2 Binary 100111110110011011111011110010
3 Ternary 1201121001110120011
4 Quaternary 213312123323302
5 Quinary 2332124102433
6 Senary 150202005134
8 Octal 4766337362
10 Decimal 668581618
12 Duodecimal 167aa67aa
16 Hexadecimal 27d9bef2
20 Vigesimal a8ice0i
36 Base36 b220vm

Cryptographic Hash Functions

md5 cd53b0272eeb94d872f0665d7b2cd45e
sha1 5b07ad0b82c8bf4059701ec38a2214bbd6e4d7ec
sha256 608dd7f14742d62038ea923b8152ec9f894acc8169339c5f74230f48cfc09961
sha512 f3350785931f47b322635209982b5b2b28b1ef901b98ecc86ef2cb1ea0533d2fb8320a503fc003c6124d82fece67a90133a0865a6dffe233164e423007aec768
ripemd-160 222224e25ef0f5e2707ef11b4760c4d3c07fdbf2

668581618 as geometric shapes

Circle

Radius = n
Diameter 1337163236
Circumference 4200822198.868
Area 1.4042962513247E+18

Sphere

Radius = n
Volume 1.251848879816E+27
Surface area 5.6171850052989E+18
Circumference 4200822198.868

Square

Length = n
Perimeter 2674326472
Area 447001379927497924
Diagonal 945517191.72895

Cube

Length = n
Surface area 2682008279564987544
Volume 2.9885690584016E+26
Space diagonal 1158017331.3826

Equilateral Triangle

Length = n
Perimeter 2005744854
Area 1.9355727527196E+17
Altitude 579008665.6913

Triangular Pyramid

Length = n
Surface area 1.9355727527196E+17
Volume 3.5220624120668E+25
Height 315172397.24298