686989721 (number)

686989721 is an odd 9-digits composite number following 686989720 and preceding 686989722. In scientific notation, it is written as 6.86989721 × 10^8. The sum of its digits is 56. It has a total of 3 prime factors and 6 positive divisors. There are 624536000 positive integers (up to 686989721) that are relatively prime to 686989721.

Interesting facts

Basic properties

Name

Name six hundred eighty-six million nine hundred eighty-nine thousand seven hundred twenty-one

Notation

Scientific notation 6.86989721 × 10^8
Engineering notation 6.86989721 × 10^6

Prime Factorization of 686989721

Prime Factorization 11 × 11 × 5677601

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 62453611
Product of the distinct prime numbers

The prime factorization of 686989721 is 11 × 11 × 5677601. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 76, 85, 744, 781, 4069, 5094, 8552, 91766, 943874, 712661, 7887240, 43310, 98304976, 10909158, 131422209, 580257351, 5466367144, 427605796

Basic calculations (n = 686989721)

Multiplication

n×y
n×2 1373979442
n×3 2060969163
n×4 2747958884
n×5 3434948605

Division

n÷y
n÷2 343494860.5
n÷3 228996573.66667
n÷3 171747430.25
n÷5 137397944.2

Exponentiation

ny
n2 471954876759657841
n3 3.2422814910971E+26
n4 2.2274140569722E+35
n5 1.5302105615508E+44

Nth Root

y√n
2√n 26210.488759273
3√n 882.3686706802
4√n 161.89653720594
5√n 58.531553072069

Divisors of 686989721

1, 11, 121, 5677601, 62453611, 686989721

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -686989720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 686989721 can be divided by 6 positive divisors. The sum of these divisors (counting 686989721) is 1, the average is 0.16666666666667.

Base conversion 686989721

Base System Value
2 Binary 101000111100101010000110011001
3 Ternary 1202212200200201202
4 Quaternary 220330222012121
5 Quinary 2401332132341
6 Senary 152100323545
8 Octal 5074520631
10 Decimal 686989721
12 Duodecimal 1720a35b5
16 Hexadecimal 28f2a199
20 Vigesimal aedde61
36 Base36 bd0knt

Cryptographic Hash Functions

md5 a592a1625ad4a8478dd1c41c1b3e0e45
sha1 41ed1ace67cb89af15abd89d75dc77e581ca203e
sha256 faf112ef529d5abc97dfec1f3b00ca2704dcba94435cc0cd8eb0dc8564783a52
sha512 165ad8de42b1675978417445afaaf9a383db01654caa0dbdf8f6b8bedf93edce51c7cb728e2e6366516298b76e44052a00b1648c72a9f7742786d1ab121b5f3b
ripemd-160 c54b961be65ab0a9441bb4c736667e6e6344b71e

686989721 as geometric shapes

Circle

Radius = n
Diameter 1373979442
Circumference 4316483721.1706
Area 1.482689973654E+18

Sphere

Radius = n
Volume 1.3581236951068E+27
Surface area 5.9307598946161E+18
Circumference 4316483721.1706

Square

Length = n
Perimeter 2747958884
Area 471954876759657841
Diagonal 971550180.64911

Cube

Length = n
Surface area 2831729260557947046
Volume 3.2422814910971E+26
Space diagonal 1189901101.0496

Equilateral Triangle

Length = n
Perimeter 2060969163
Area 2.0436245635691E+17
Altitude 594950550.52478

Triangular Pyramid

Length = n
Surface area 2.0436245635691E+17
Volume 3.8210653814506E+25
Height 323850060.21637