68561909 is an odd 8-digits composite number following 68561908
and preceding 68561910 . In scientific notation, it is written as 6.8561909 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 61815600 positive integers (up to 68561909) that are relatively prime to 68561909.
68561909 has 8 divisors, whose sum is 75553632
The reverse of 68561909 is 90916586
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
sixty-eight million five hundred sixty-one thousand nine hundred nine
Scientific notation
6.8561909 × 10^7
Engineering notation
6.8561909 × 10^6
Prime Factorization
13 × 43 × 122651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68561909
Product of the distinct prime numbers
The prime factorization of 68561909 is 13 × 43 × 122651.
Since it has a total of 3 prime factors.
1 , 9 , 62 , 5 , 228 , 541 , 2816 , 114 , 4877 , 56177 , 382957 , 807276 , 2317612 , 444169 , 31431002 , 89469221 , 376131571 , 715059383 , 680825100 , 949441311
n×2
137123818
n×3
205685727
n×4
274247636
n×5
342809545
n÷2
34280954.5
n÷3
22853969.666667
n÷3
17140477.25
n÷5
13712381.8
n2
4700735365724281
n3
3.2229139037787E+23
n4
2.2096912978571E+31
n5
1.5150065368177E+39
2 √n
8280.211893424
3 √n
409.28670145807
4 √n
90.995669641055
5 √n
36.916165155713
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
-68561908
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 68561909 can be divided by 8 positive divisors.
The sum of these divisors (counting 68561909) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101100010101111110101
3
Ternary
11210000022020222
4
Quaternary
10011202233311
5
Quinary
120022440114
6
Senary
10445304125
8
Octal
405425765
10
Decimal
68561909
12
Duodecimal
1ab65045
16
Hexadecimal
4162bf5
20
Vigesimal
118a4f9
36
Base36
14tiph
md5
c0d44aab289a6276e54ed5f0dabfba9e
sha1
1bf32f5cd35ef5050b7a4cf3f1f04053dafefccb
sha256
d6bb437901a4b95897380e8666a283ff33066df4c18367e1ab27e00cf54d1954
sha512
d42973dc5d8a710c7547cf799fab8cfdfbb27ddb48e99db9b1662f24ea8aed397479dee0133acd636ec9b5da7e57c898ea4fd4a7ba7f2230861048558917087f
ripemd-160
5b7d1fef38cdc34e2b93bd92328a96342be09893
Diameter
137123818
Circumference
430787179.26098
Area
1.4767795691429E+16
Volume
1.3500110191018E+24
Surface area
5.9071182765717E+16
Circumference
430787179.26098
Perimeter
274247636
Area
4700735365724281
Diagonal
96961181.56999
Surface area
28204412194345686
Volume
3.2229139037787E+23
Space diagonal
118752709.85191
Perimeter
205685727
Area
2.0354781215926E+15
Altitude
59376354.925957
Surface area
2.0354781215926E+15
Volume
3.7982404609039E+22
Height
32320393.856663