20686970 is an even 8-digits composite number following 20686969
and preceding 20686971 . In scientific notation, it is written as 2.0686970 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 8232000 positive integers (up to 20686970) that are relatively prime to 20686970.
20686970 has 16 divisors, whose sum is 37429128
The reverse of 20686970 is 07968602
Previous prime number is 197
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred eighty-six thousand nine hundred seventy
Scientific notation
2.0686970 × 10^7
Engineering notation
2.0686970 × 10^6
Prime Factorization
2 × 5 × 197 × 10501
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20686970
Product of the distinct prime numbers
The prime factorization of 20686970 is 2 × 5 × 197 × 10501.
Since it has a total of 4 prime factors.
2 , 2 , 19 , 65 , 484 , 405 , 1156 , 9011 , 97882 , 12896 , 640852 , 837727 , 7747890 , 137226 , 52975432 , 35825864 , 958644410 , 40925069 , 7259843692 , 4995134900
n×2
41373940
n×3
62060910
n×4
82747880
n×5
103434850
n÷2
10343485
n÷3
6895656.6666667
n÷3
5171742.5
n÷5
4137394
n2
427950727780900
n3
8.8530038670816E+21
n4
1.831418254082E+29
n5
3.7886494479647E+36
2 √n
4548.2930864226
3 √n
274.51471438028
4 √n
67.441034144078
5 √n
29.049547839969
1 , 2 , 5 , 10 , 197 , 394 , 985 , 1970 , 10501 , 21002 , 52505 , 105010 , 2068697 , 4137394 , 10343485 , 20686970
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20686969
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20686970 can be divided by 16 positive divisors.
The sum of these divisors (counting 20686970) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010100001111010
3
Ternary
1102221000012002
4
Quaternary
1032322201322
5
Quinary
20243440340
6
Senary
2015221002
8
Octal
116724172
10
Decimal
20686970
12
Duodecimal
6b17762
16
Hexadecimal
13ba87a
20
Vigesimal
695h8a
36
Base36
cbe62
md5
dd3950ebc8968fb4b9549a26b3ab22a2
sha1
671a58fcf6ead5582ec0943b503a90f4dc69ec3d
sha256
aeba336db703a5fa15dbb8a16f520c07933a0801f22655295bd2b260e3ab9af7
sha512
20ea832a137c2be6b6c5ca722de156ca87c05a04ff2b0b7ac4948e3f5aceb2ba80fcada12abdfb86cac4be95caea2496a0d0d9189d89a3e76611f6ffe0126b60
ripemd-160
d5093e53dad83ebe16d5018680f6ff0c0ddab1d0
Diameter
41373940
Circumference
129980065.95406
Area
1.3444468624949E+15
Volume
3.7083375881368E+22
Surface area
5.3777874499795E+15
Circumference
129980065.95406
Perimeter
82747880
Area
427950727780900
Diagonal
29255793.538405
Surface area
2567704366685400
Volume
8.8530038670816E+21
Space diagonal
35830883.094653
Perimeter
62060910
Area
1.8530810091315E+14
Altitude
17915441.547327
Surface area
1.8530810091315E+14
Volume
1.0433365113807E+21
Height
9751931.1794684