68709561 is an odd 8-digits composite number following 68709560
and preceding 68709562 . In scientific notation, it is written as 6.8709561 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 45806372 positive integers (up to 68709561) that are relatively prime to 68709561.
68709561 has 4 divisors, whose sum is 91612752
The reverse of 68709561 is 16590786
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-eight million seven hundred nine thousand five hundred sixty-one
Scientific notation
6.8709561 × 10^7
Engineering notation
6.8709561 × 10^6
Prime Factorization
3 × 22903187
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68709561
Product of the distinct prime numbers
The prime factorization of 68709561 is 3 × 22903187.
Since it has a total of 2 prime factors.
8 , 9 , 76 , 3 , 212 , 653 , 7166 , 1213 , 98935 , 13137 , 213087 , 118134 , 1270952 , 5367466 , 339092 , 80859625 , 808152776 , 243577018 , 9327300299 , 3246569367
n×2
137419122
n×3
206128683
n×4
274838244
n×5
343547805
n÷2
34354780.5
n÷3
22903187
n÷3
17177390.25
n÷5
13741912.2
n2
4721003772812721
n3
3.2437809670931E+23
n4
2.2287876622912E+31
n5
1.5313902183824E+39
2 √n
8289.1230537373
3 √n
409.58029825496
4 √n
91.044621223537
5 √n
36.932051692006
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
-68709560
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 68709561 can be divided by 4 positive divisors.
The sum of these divisors (counting 68709561) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000110000110110010111001
3
Ternary
11210021210210120
4
Quaternary
10012012302321
5
Quinary
120042201221
6
Senary
10452403453
8
Octal
406066271
10
Decimal
68709561
12
Duodecimal
1b016589
16
Hexadecimal
4186cb9
20
Vigesimal
1198di1
36
Base36
14womx
md5
1b0e0bc6dab79e1704c0d0fb9dc8c8a8
sha1
ec475260b8b705c75de36dfee2ba7f846d23b87b
sha256
af61167e1f7323532692344baebb9fcd4ad7b1cbc869e1100829d3b72e0db7e0
sha512
6075417caaa404aa27f78a279f0b26888962798adbd9d63ccf6b5713fa14fef981d8703c5071e519b91b00c13da15d9c2335d49b6dbef1c1152ea078663da5c9
ripemd-160
6b461d1efc1cf2d091c774b19fca8a59f8897525
Diameter
137419122
Circumference
431714904.13796
Area
1.4831470770238E+16
Volume
1.3587517941432E+24
Surface area
5.9325883080953E+16
Circumference
431714904.13796
Perimeter
274838244
Area
4721003772812721
Diagonal
97169993.030901
Surface area
28326022636876326
Volume
3.2437809670931E+23
Space diagonal
119008450.61775
Perimeter
206128683
Area
2.044254599309E+15
Altitude
59504225.308877
Surface area
2.044254599309E+15
Volume
3.8228325308589E+22
Height
32389997.676967