20689615 is an odd 8-digits composite number following 20689614
and preceding 20689616 . In scientific notation, it is written as 2.0689615 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 15805440 positive integers (up to 20689615) that are relatively prime to 20689615.
20689615 has 8 divisors, whose sum is 21061376
The reverse of 20689615 is 51698602
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred eighty-nine thousand six hundred fifteen
Scientific notation
2.0689615 × 10^7
Engineering notation
2.0689615 × 10^6
Prime Factorization
145 × 97 × 1471
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20689615
Product of the distinct prime numbers
The prime factorization of 20689615 is 145 × 97 × 1471.
Since it has a total of 3 prime factors.
2 , 4 , 51 , 59 , 873 , 334 , 8494 , 9088 , 92229 , 62121 , 83516 , 699635 , 1062450 , 929850 , 76039418 , 72610390 , 450676030 , 303669121 , 2119550930 , 9179807948
n×2
41379230
n×3
62068845
n×4
82758460
n×5
103448075
n÷2
10344807.5
n÷3
6896538.3333333
n÷3
5172403.75
n÷5
4137923
n2
428060168848225
n3
8.8564000903048E+21
n4
1.8323550815437E+29
n5
3.7910721180433E+36
2 √n
4548.5838455502
3 √n
274.52641353964
4 √n
67.443189764054
5 √n
29.050290646912
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
-20689614
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 20689615 can be divided by 8 positive divisors.
The sum of these divisors (counting 20689615) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011001011001111
3
Ternary
1102221010211001
4
Quaternary
1032323023033
5
Quinary
20244031430
6
Senary
2015241131
8
Octal
116731317
10
Decimal
20689615
12
Duodecimal
6b191a7
16
Hexadecimal
13bb2cf
20
Vigesimal
69640f
36
Base36
cbg7j
md5
1b4a32fb98d5ecff6ddbf82feed6b81a
sha1
761b43eba784c11d91b70b669222492b806180c7
sha256
aefdc1970a3b224b867abc427ab23f31668883337b890818841d26f8463f24d7
sha512
9b8ff34a0f6d4606e859be5891c1cb34b42404970c6257d9abe1fca50277ba98e51ac90788ac7e7d6eb91b2d3b14d4c71c1f33a1993e13cc0e15767c6e08f4dc
ripemd-160
dd7ceb7e6f6d82edf94f269c86e26b78c2b17297
Diameter
41379230
Circumference
129996684.9792
Area
1.344790681748E+15
Volume
3.7097601947938E+22
Surface area
5.379162726992E+15
Circumference
129996684.9792
Perimeter
82758460
Area
428060168848225
Diagonal
29259534.133278
Surface area
2568361013089350
Volume
8.8564000903048E+21
Space diagonal
35835464.369039
Perimeter
62068845
Area
1.8535549028541E+14
Altitude
17917732.18452
Surface area
1.8535549028541E+14
Volume
1.0437367601259E+21
Height
9753178.0444259