668712891 (number)

668712891 is an odd 9-digits composite number following 668712890 and preceding 668712892. In scientific notation, it is written as 6.68712891 × 10^8. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 347383200 positive integers (up to 668712891) that are relatively prime to 668712891.

Interesting facts

Basic properties

Name

Name six hundred sixty-eight million seven hundred twelve thousand eight hundred ninety-one

Notation

Scientific notation 6.68712891 × 10^8
Engineering notation 6.68712891 × 10^6

Prime Factorization of 668712891

Prime Factorization 3 × 11 × 7 × 2894861

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 668712891
Product of the distinct prime numbers

The prime factorization of 668712891 is 3 × 11 × 7 × 2894861. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 9, 68, 55, 573, 876, 5513, 5275, 28991, 93617, 863143, 526603, 3482992, 513170, 55819373, 4129166, 548296606, 867433552, 706781129, 4829548528

Basic calculations (n = 668712891)

Multiplication

n×y
n×2 1337425782
n×3 2006138673
n×4 2674851564
n×5 3343564455

Division

n÷y
n÷2 334356445.5
n÷3 222904297
n÷3 167178222.75
n÷5 133742578.2

Exponentiation

ny
n2 447176930589577881
n3 2.9903297804306E+26
n4 1.9996720725152E+35
n5 1.3372064926636E+44

Nth Root

y√n
2√n 25859.48357953
3√n 874.47332266664
4√n 160.80884173307
5√n 58.216747606726

Divisors of 668712891

1, 3, 7, 11, 21, 33, 77, 231, 2894861, 8684583, 20264027, 31843471, 60792081, 95530413, 222904297, 668712891

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 -668712890
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 668712891 can be divided by 16 positive divisors. The sum of these divisors (counting 668712891) is 1, the average is 0.0625.

Base conversion 668712891

Base System Value
2 Binary 100111110110111011111110111011
3 Ternary 1201121022010122010
4 Quaternary 213312323332323
5 Quinary 2332142303031
6 Senary 150204501003
8 Octal 4766737673
10 Decimal 668712891
12 Duodecimal 167b4a763
16 Hexadecimal 27dbbfbb
20 Vigesimal a8j924b
36 Base36 b24u63

Cryptographic Hash Functions

md5 43eac11841edc7278c5f02057128b6a7
sha1 d73172bd6859813cc2bd7c4f21e58543c0266b7f
sha256 7ec3bb15b5a3355f1f6a5e4ffdcd8280934e0ec11e06e733b2f8aa37d9bd3467
sha512 0b40d919f15ac53aeae57387f15707b171fd192cccd56d1543776d2ef0c43b305e3ea097d65e7022d4395f052bf6838dad24e70357ea1603a83dbd3d18056f59
ripemd-160 e30b73a28fa6e55b864b8945fcc57058defc4580

668712891 as geometric shapes

Circle

Radius = n
Diameter 1337425782
Circumference 4201647011.4528
Area 1.4048477599951E+18

Sphere

Radius = n
Volume 1.2525864093349E+27
Surface area 5.6193910399802E+18
Circumference 4201647011.4528

Square

Length = n
Perimeter 2674851564
Area 447176930589577881
Diagonal 945702839.78592

Cube

Length = n
Surface area 2683061583537467286
Volume 2.9903297804306E+26
Space diagonal 1158244702.8883

Equilateral Triangle

Length = n
Perimeter 2006138673
Area 1.9363329093846E+17
Altitude 579122351.44413

Triangular Pyramid

Length = n
Surface area 1.9363329093846E+17
Volume 3.5241374428776E+25
Height 315234279.92864