686991971 (number)

686991971 is an odd 9-digits composite number following 686991970 and preceding 686991972. In scientific notation, it is written as 6.86991971 × 10^8. The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors. There are 686883600 positive integers (up to 686991971) that are relatively prime to 686991971.

Interesting facts

Basic properties

Name

Name six hundred eighty-six million nine hundred ninety-one thousand nine hundred seventy-one

Notation

Scientific notation 6.86991971 × 10^8
Engineering notation 6.86991971 × 10^6

Prime Factorization of 686991971

Prime Factorization 6761 × 101611

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 686991971
Product of the distinct prime numbers

The prime factorization of 686991971 is 6761 × 101611. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 9, 15, 43, 490, 145, 692, 9957, 69736, 96086, 954982, 931260, 7736457, 1143825, 18951183, 49746245, 459326521, 910182239, 289215265, 5360579408

Basic calculations (n = 686991971)

Multiplication

n×y
n×2 1373983942
n×3 2060975913
n×4 2747967884
n×5 3434959855

Division

n÷y
n÷2 343495985.5
n÷3 228997323.66667
n÷3 171747992.75
n÷5 137398394.2

Exponentiation

ny
n2 471957968218464841
n3 3.2423133481556E+26
n4 2.227443237649E+35
n5 1.5302356201231E+44

Nth Root

y√n
2√n 26210.531680987
3√n 882.36963397814
4√n 161.89666976497
5√n 58.531591412037

Divisors of 686991971

1, 6761, 101611, 686991971

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 -686991970
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 686991971 can be divided by 4 positive divisors. The sum of these divisors (counting 686991971) is 1, the average is 0.25.

Base conversion 686991971

Base System Value
2 Binary 101000111100101010101001100011
3 Ternary 1202212200210211002
4 Quaternary 220330222221203
5 Quinary 2401332220341
6 Senary 152100342215
8 Octal 5074525143
10 Decimal 686991971
12 Duodecimal 1720a496b
16 Hexadecimal 28f2aa63
20 Vigesimal aeddjib
36 Base36 bd0meb

Cryptographic Hash Functions

md5 2239a54d9a18e44e8353a4f1750db652
sha1 7da042b1f7f0d257d1bccb59c2641360b97f8736
sha256 cdda09e0e28e898d9da26fced1d9b4190efd11ace822f246078aca703cdab1be
sha512 42f9eb3cd67e3d21fa92ae4071b6345dc15a4b784341ac43e4249413331cf4972a07f599a8c5c577015ca7e70e91d37b3350189f4f3f55a80140e3d6a3ed3248
ripemd-160 788ff249facebbb79cc4b10e4e272a6544b3a083

686991971 as geometric shapes

Circle

Radius = n
Diameter 1373983942
Circumference 4316497858.3375
Area 1.4826996857583E+18

Sphere

Radius = n
Volume 1.3581370393602E+27
Surface area 5.9307987430332E+18
Circumference 4316497858.3375

Square

Length = n
Perimeter 2747967884
Area 471957968218464841
Diagonal 971553362.62962

Cube

Length = n
Surface area 2831747809310789046
Volume 3.2423133481556E+26
Space diagonal 1189904998.1639

Equilateral Triangle

Length = n
Perimeter 2060975913
Area 2.0436379499784E+17
Altitude 594952499.08194

Triangular Pyramid

Length = n
Surface area 2.0436379499784E+17
Volume 3.8211029253541E+25
Height 323851120.87654