686985 (number)

686985 is an odd 6-digits composite number following 686984 and preceding 686986. In scientific notation, it is written as 6.86985 × 10^5. The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors. There are 336960 positive integers (up to 686985) that are relatively prime to 686985.

Interesting facts

Basic properties

Name

Name six hundred eighty-six thousand nine hundred eighty-five

Notation

Scientific notation 6.86985 × 10^5
Engineering notation 6.86985 × 10^3

Prime Factorization of 686985

Prime Factorization 5 × 3 × 13 × 13 × 271

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 52845
Product of the distinct prime numbers

The prime factorization of 686985 is 5 × 3 × 13 × 13 × 271. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 686985)

Multiplication

n×y
n×2 1373970
n×3 2060955
n×4 2747940
n×5 3434925

Division

n÷y
n÷2 343492.5
n÷3 228995
n÷3 171746.25
n÷5 137397

Exponentiation

ny
n2 471948390225
n3 324221464858721625
n4 2.2273528303597E+23
n5 1.5301579841647E+29

Nth Root

y√n
2√n 828.84558272334
3√n 88.236664946023
4√n 28.789678406042
5√n 14.702441190544

Divisors of 686985

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -686984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 686985 can be divided by 24 positive divisors. The sum of these divisors (counting 686985) is 1, the average is 0.041666666666667.

Base conversion 686985

Base System Value
2 Binary 10100111101110001001
3 Ternary 1021220100220
4 Quaternary 2213232021
5 Quinary 133440420
6 Senary 22420253
8 Octal 2475611
10 Decimal 686985
12 Duodecimal 291689
16 Hexadecimal a7b89
20 Vigesimal 45h95
36 Base36 eq2x

Cryptographic Hash Functions

md5 6615c7283cffe34e6e7cc89d63325edc
sha1 7a6c800c5ad016f8b4dbaee9ec4b870d5e8248cb
sha256 2bc27f49066625391e46c28750df0a48328d4155010ec721fbed4ffa98b61428
sha512 460a7f443d200b633305d485a1066b2aded190de92e0a698f545a61597ede1660ea04a8c75720949398967b38ee1576415b2a82be558a68092d9dc59eaa9e0f6
ripemd-160 8069b1a9298aeb73909f77c453b0f7cb9a253645

686985 as geometric shapes

Circle

Radius = n
Diameter 1373970
Circumference 4316454.0582528
Area 1482669595604.4

Sphere

Radius = n
Volume 1.3580956961817E+18
Surface area 5930678382417.6
Circumference 4316454.0582528

Square

Length = n
Perimeter 2747940
Area 471948390225
Diagonal 971543.50414688

Cube

Length = n
Surface area 2831690341350
Volume 324221464858721625
Space diagonal 1189892.9240377

Equilateral Triangle

Length = n
Perimeter 2060955
Area 204359647605.01
Altitude 594946.46201885

Triangular Pyramid

Length = n
Surface area 204359647605.01
Volume 3.8209866067973E+16
Height 323847.83471563