685409161 is an odd 9-digits composite number following 685409160
and preceding 685409162 . In scientific notation, it is written as 6.85409161 × 10^8.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 680176900 positive integers (up to 685409161) that are relatively prime to 685409161.
685409161 has 4 divisors, whose sum is 690641424
The reverse of 685409161 is 161904586
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
six hundred eighty-five million four hundred nine thousand one hundred sixty-one
Scientific notation
6.85409161 × 10^8
Engineering notation
6.85409161 × 10^6
Prime Factorization
131 × 5232131
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
685409161
Product of the distinct prime numbers
The prime factorization of 685409161 is 131 × 5232131.
Since it has a total of 2 prime factors.
4 , 6 , 77 , 100 , 508 , 907 , 6645 , 4115 , 48947 , 59291 , 931615 , 44026 , 269909 , 2054388 , 51220453 , 25186241 , 471683479 , 611166335 , 2556207146 , 1478357536
n×2
1370818322
n×3
2056227483
n×4
2741636644
n×5
3427045805
n÷2
342704580.5
n÷3
228469720.33333
n÷3
171352290.25
n÷5
137081832.2
n2
469785717982723921
n3
3.2199543481232E+26
n4
2.2069862082054E+35
n5
1.5126885653047E+44
2 √n
26180.320108815
3 √n
881.69146135119
4 √n
161.80333775548
5 √n
58.504595496407
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
-685409160
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 685409161 can be divided by 4 positive divisors.
The sum of these divisors (counting 685409161) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000110110101000001110001001
3
Ternary
1202202201101121111
4
Quaternary
220312220032021
5
Quinary
2400431043121
6
Senary
152002410321
8
Octal
5066501611
10
Decimal
685409161
12
Duodecimal
1716609a1
16
Hexadecimal
28da8389
20
Vigesimal
ae3g2i1
36
Base36
bc2p3d
md5
c50292cf055796761537799fa159a2ce
sha1
7fc2259335814139ea44d157886f36bd28fa179e
sha256
ea6d9bc1c7b090b1f814f62d724b018a096f9077a3ef8d9dc77500498122adeb
sha512
50bd8474ffdcabea60c1a946fa4cafa16cad1600a8a1bd21eaa9f919df7c52f858ea6c0c1fcd545dd9af05a3e26f7ac34d7b0ea2197483df55c733d55f226023
ripemd-160
5fcac93f3833e4cf52de0463a46367a97eda1c8d
Diameter
1370818322
Circumference
4306552769.8015
Area
1.4758753603759E+18
Volume
1.3487713233278E+27
Surface area
5.9035014415037E+18
Circumference
4306552769.8015
Perimeter
2741636644
Area
469785717982723921
Diagonal
969314931.26096
Surface area
2818714307896343526
Volume
3.2199543481232E+26
Space diagonal
1187163490.8252
Perimeter
2056227483
Area
2.0342318305408E+17
Altitude
593581745.41258
Surface area
2.0342318305408E+17
Volume
3.7947525911151E+25
Height
323104977.08699