668865961 (number)

668865961 is an odd 9-digits composite number following 668865960 and preceding 668865962. In scientific notation, it is written as 6.68865961 × 10^8. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 667825092 positive integers (up to 668865961) that are relatively prime to 668865961.

Interesting facts

Basic properties

Name

Name six hundred sixty-eight million eight hundred sixty-five thousand nine hundred sixty-one

Notation

Scientific notation 6.68865961 × 10^8
Engineering notation 6.68865961 × 10^6

Prime Factorization of 668865961

Prime Factorization 643 × 1040227

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 668865961
Product of the distinct prime numbers

The prime factorization of 668865961 is 643 × 1040227. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 8, 88, 459, 671, 183, 9729, 89763, 66252, 907152, 447974, 9071937, 8089086, 2995754, 85087563, 800676962, 826518468, 9259557964, 7288938316

Basic calculations (n = 668865961)

Multiplication

n×y
n×2 1337731922
n×3 2006597883
n×4 2675463844
n×5 3344329805

Division

n÷y
n÷2 334432980.5
n÷3 222955320.33333
n÷3 167216490.25
n÷5 133773192.2

Exponentiation

ny
n2 447381673784453521
n3 2.9923837316963E+26
n4 2.0015036203818E+35
n5 1.3387376424916E+44

Nth Root

y√n
2√n 25862.443059386
3√n 874.54004059661
4√n 160.81804332657
5√n 58.219412553631

Divisors of 668865961

1, 643, 1040227, 668865961

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 -668865960
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 668865961 can be divided by 4 positive divisors. The sum of these divisors (counting 668865961) is 1, the average is 0.25.

Base conversion 668865961

Base System Value
2 Binary 100111110111100001010110101001
3 Ternary 1201121120220121101
4 Quaternary 213313201112221
5 Quinary 2332212202321
6 Senary 150212041401
8 Octal 4767412651
10 Decimal 668865961
12 Duodecimal 168003261
16 Hexadecimal 27de15a9
20 Vigesimal a9084i1
36 Base36 b284a1

Cryptographic Hash Functions

md5 4e975a48c9fd89ef1a016df28f6084da
sha1 3908adf6a0605e849729606746a399d7ac1abbc3
sha256 218d6c8219a436e3a7b52e450f11c96bbbc12fbfe68bdb394f21f5f48e75ced0
sha512 d9a134990d00182b5792686f48f54990a11187b87f9e83b672a1c64800ccd7544a9e3cd18b3a222e1a7c90aa7a4c74d720bd19252b7865ff108a0fbca1554369
ripemd-160 3f59b780fa26794d9eb7a1288893c585941d9374

668865961 as geometric shapes

Circle

Radius = n
Diameter 1337731922
Circumference 4202608778.6278
Area 1.4054909797119E+18

Sphere

Radius = n
Volume 1.2534467664291E+27
Surface area 5.6219639188478E+18
Circumference 4202608778.6278

Square

Length = n
Perimeter 2675463844
Area 447381673784453521
Diagonal 945919313.45591

Cube

Length = n
Surface area 2684290042706721126
Volume 2.9923837316963E+26
Space diagonal 1158509827.9054

Equilateral Triangle

Length = n
Perimeter 2006597883
Area 1.9372194734247E+17
Altitude 579254913.95269

Triangular Pyramid

Length = n
Surface area 1.9372194734247E+17
Volume 3.5265580476579E+25
Height 315306437.81864