685688081 (number)

685688081 is an odd 9-digits composite number following 685688080 and preceding 685688082. In scientific notation, it is written as 6.85688081 × 10^8. The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors. There are 595710720 positive integers (up to 685688081) that are relatively prime to 685688081.

Interesting facts

Basic properties

Name

Name six hundred eighty-five million six hundred eighty-eight thousand eighty-one

Notation

Scientific notation 6.85688081 × 10^8
Engineering notation 6.85688081 × 10^6

Prime Factorization of 685688081

Prime Factorization 13 × 17 × 3102661

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 685688081
Product of the distinct prime numbers

The prime factorization of 685688081 is 13 × 17 × 3102661. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 3, 7, 42, 392, 80, 6138, 274, 13079, 78569, 746385, 531374, 1792980, 3623497, 89047136, 36010319, 327099124, 69270069, 4116863446, 6072636772

Basic calculations (n = 685688081)

Multiplication

n×y
n×2 1371376162
n×3 2057064243
n×4 2742752324
n×5 3428440405

Division

n÷y
n÷2 342844040.5
n÷3 228562693.66667
n÷3 171422020.25
n÷5 137137616.2

Exponentiation

ny
n2 470168144425462561
n3 3.2238869269843E+26
n4 2.2105808403248E+35
n5 1.5157689342977E+44

Nth Root

y√n
2√n 26185.64646901
3√n 881.81104346631
4√n 161.81979628281
5√n 58.509356286651

Divisors of 685688081

1, 13, 17, 221, 3102661, 40334593, 52745237, 685688081

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -685688080
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 685688081 can be divided by 8 positive divisors. The sum of these divisors (counting 685688081) is 1, the average is 0.125.

Base conversion 685688081

Base System Value
2 Binary 101000110111101100010100010001
3 Ternary 1202210020120012212
4 Quaternary 220313230110101
5 Quinary 2401014004311
6 Senary 152012401505
8 Octal 5067542421
10 Decimal 685688081
12 Duodecimal 171776295
16 Hexadecimal 28dec511
20 Vigesimal ae5b041
36 Base36 bc8ob5

Cryptographic Hash Functions

md5 effe8967d4668663b4d3cb5e4c8c90ec
sha1 70ff604646e3b64bd32ab93169548cafc2ef4d2c
sha256 32c228c06839e33ba2c99f61e6eca13196a74ff988f4d191fe8010d38f8c0dcd
sha512 89f895bfa08fdff4f815b77ee5fa47a0e85eb9da33048ac3621e0c0f982466daece011cad98e9e20fedbb4837f392d9546480aa9dfccec7ae106ba56e436e2af
ripemd-160 92a41282e9e025f5ef466265d445c62c1fe429ba

685688081 as geometric shapes

Circle

Radius = n
Diameter 1371376162
Circumference 4308305275.8474
Area 1.477076788479E+18

Sphere

Radius = n
Volume 1.3504185981091E+27
Surface area 5.9083071539159E+18
Circumference 4308305275.8474

Square

Length = n
Perimeter 2742752324
Area 470168144425462561
Diagonal 969709383.70778

Cube

Length = n
Surface area 2821008866552775366
Volume 3.2238869269843E+26
Space diagonal 1187646594.4364

Equilateral Triangle

Length = n
Perimeter 2057064243
Area 2.0358877856132E+17
Altitude 593823297.2182

Triangular Pyramid

Length = n
Surface area 2.0358877856132E+17
Volume 3.7993871797487E+25
Height 323236461.23593