668431491 (number)

668431491 is an odd 9-digits composite number following 668431490 and preceding 668431492. In scientific notation, it is written as 6.68431491 × 10^8. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 349235712 positive integers (up to 668431491) that are relatively prime to 668431491.

Interesting facts

Basic properties

Name

Name six hundred sixty-eight million four hundred thirty-one thousand four hundred ninety-one

Notation

Scientific notation 6.68431491 × 10^8
Engineering notation 6.68431491 × 10^6

Prime Factorization of 668431491

Prime Factorization 39 × 49 × 109 × 3209

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 668431491
Product of the distinct prime numbers

The prime factorization of 668431491 is 39 × 49 × 109 × 3209. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 89, 16, 79, 184, 9329, 940, 40381, 53962, 440169, 13697, 8964928, 8549614, 60234783, 40435388, 585788146, 673553608, 2767755161, 8672807215

Basic calculations (n = 668431491)

Multiplication

n×y
n×2 1336862982
n×3 2005294473
n×4 2673725964
n×5 3342157455

Division

n÷y
n÷2 334215745.5
n÷3 222810497
n÷3 167107872.75
n÷5 133686298.2

Exponentiation

ny
n2 446800658160483081
n3 2.9865563011399E+26
n4 1.9963082813264E+35
n5 1.3343953209827E+44

Nth Root

y√n
2√n 25854.042063089
3√n 874.35064355106
4√n 160.79192163504
5√n 58.211847162544

Divisors of 668431491

1, 39, 49, 109, 1911, 3209, 4251, 5341, 125151, 157241, 208299, 349781, 6132399, 13641459, 17139269, 668431491

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 -668431490
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 668431491 can be divided by 16 positive divisors. The sum of these divisors (counting 668431491) is 1, the average is 0.0625.

Base conversion 668431491

Base System Value
2 Binary 100111110101110111010010000011
3 Ternary 1201120202211121220
4 Quaternary 213311313102003
5 Quinary 2332104301431
6 Senary 150154450123
8 Octal 4765672203
10 Decimal 668431491
12 Duodecimal 167a33943
16 Hexadecimal 27d77483
20 Vigesimal a8hdieb
36 Base36 b1yt1f

Cryptographic Hash Functions

md5 c055cb80fd729d332aba1293c24f0aa2
sha1 721d1d5cc34021a277489e3d4200e6c2a8e35429
sha256 434ffcac5c7011daaa4ba055766f28ad25932f3094f48a69c26003c2bf4555b2
sha512 f4a26301679368606e46d276db4b062340a23622d28fa01aa338ed84f460f606d0d7608bcc9fd64d8b790d896aa1a5c065a2cd27f29eab1e52d8b307dcb6f8a2
ripemd-160 628d577603d522f5bf0b16c6da8b156863cda8fe

668431491 as geometric shapes

Circle

Radius = n
Diameter 1336862982
Circumference 4199878923.1073
Area 1.4036656652961E+18

Sphere

Radius = n
Volume 1.2510057780258E+27
Surface area 5.6146626611842E+18
Circumference 4199878923.1073

Square

Length = n
Perimeter 2673725964
Area 446800658160483081
Diagonal 945304880.08947

Cube

Length = n
Surface area 2680803948962898486
Volume 2.9865563011399E+26
Space diagonal 1157757303.791

Equilateral Triangle

Length = n
Perimeter 2005294473
Area 1.9347036019729E+17
Altitude 578878651.89551

Triangular Pyramid

Length = n
Surface area 1.9347036019729E+17
Volume 3.5196903548858E+25
Height 315101626.69649