20686505 is an odd 8-digits composite number following 20686504
and preceding 20686506 . In scientific notation, it is written as 2.0686505 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 14012160 positive integers (up to 20686505) that are relatively prime to 20686505.
20686505 has 8 divisors, whose sum is 21536928
The reverse of 20686505 is 50568602
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million six hundred eighty-six thousand five hundred five
Scientific notation
2.0686505 × 10^7
Engineering notation
2.0686505 × 10^6
Prime Factorization
35 × 83 × 7121
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20686505
Product of the distinct prime numbers
The prime factorization of 20686505 is 35 × 83 × 7121.
Since it has a total of 3 prime factors.
6 , 9 , 31 , 30 , 724 , 985 , 1933 , 5414 , 85029 , 35883 , 892369 , 664454 , 1572428 , 3437026 , 38716019 , 84285863 , 92094241 , 489081547 , 1495402681 , 1789281348
n×2
41373010
n×3
62059515
n×4
82746020
n×5
103432525
n÷2
10343252.5
n÷3
6895501.6666667
n÷3
5171626.25
n÷5
4137301
n2
427931489115025
n3
8.8524068892354E+21
n4
1.831253593762E+29
n5
3.7882236623626E+36
2 √n
4548.2419680575
3 √n
274.51265752519
4 √n
67.440655157387
5 √n
29.049417244129
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
-20686504
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 20686505 can be divided by 8 positive divisors.
The sum of these divisors (counting 20686505) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010011010101001
3
Ternary
1102220222112212
4
Quaternary
1032322122221
5
Quinary
20243432010
6
Senary
2015214505
8
Octal
116723251
10
Decimal
20686505
12
Duodecimal
6b17435
16
Hexadecimal
13ba6a9
20
Vigesimal
695g55
36
Base36
cbdt5
md5
02a3af6594a502adaee05f942dbbc82f
sha1
1b91876f0b8219b72a2c91aacfd3a388258e07bf
sha256
fd3a04994af53e9560a19e5c1502d3588c01d1621dae0c652511f7412eebd369
sha512
8ec804360d494913d7ade1f44cda868521d17e07b81df45b57d3db1fe6c7002ae2de1a76ea47386fe42ef58e1b9cf2dc18a57a94806fa9ba46cab337c92b9a62
ripemd-160
9bdc16c7c6bbaf4420e3635d4e2bd25c6b520b46
Diameter
41373010
Circumference
129977144.2729
Area
1.3443864224435E+15
Volume
3.7080875266413E+22
Surface area
5.377545689774E+15
Circumference
129977144.2729
Perimeter
82746020
Area
427931489115025
Diagonal
29255135.929099
Surface area
2567588934690150
Volume
8.8524068892354E+21
Space diagonal
35830077.691028
Perimeter
62059515
Area
1.8529977032646E+14
Altitude
17915038.845514
Surface area
1.8529977032646E+14
Volume
1.0432661568668E+21
Height
9751711.9763663