20718906 is an even 8-digits composite number following 20718905
and preceding 20718907 . In scientific notation, it is written as 2.0718906 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6097344 positive integers (up to 20718906) that are relatively prime to 20718906.
20718906 has 16 divisors, whose sum is 33957000
The reverse of 20718906 is 60981702
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million seven hundred eighteen thousand nine hundred six
Scientific notation
2.0718906 × 10^7
Engineering notation
2.0718906 × 10^6
Prime Factorization
2 × 69 × 13 × 11549
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20718906
Product of the distinct prime numbers
The prime factorization of 20718906 is 2 × 69 × 13 × 11549.
Since it has a total of 4 prime factors.
8 , 4 , 73 , 79 , 228 , 265 , 7769 , 3113 , 47022 , 50980 , 176195 , 234645 , 5835747 , 9695875 , 49448596 , 19380395 , 734266846 , 985862107 , 6872511575 , 9345239183
n×2
41437812
n×3
62156718
n×4
82875624
n×5
103594530
n÷2
10359453
n÷3
6906302
n÷3
5179726.5
n÷5
4143781.2
n2
429273065836836
n3
8.8940682994052E+21
n4
1.8427536505296E+29
n5
3.8179839666479E+36
2 √n
4551.8025001092
3 √n
274.6559046144
4 √n
67.467047512909
5 √n
29.058511492066
1 , 2 , 13 , 26 , 69 , 138 , 897 , 1794 , 11549 , 23098 , 150137 , 300274 , 796881 , 1593762 , 10359453 , 20718906
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
-20718905
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 20718906 can be divided by 16 positive divisors.
The sum of these divisors (counting 20718906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111000010010100111010
3
Ternary
1102222121222220
4
Quaternary
1033002110322
5
Quinary
20301001111
6
Senary
2020024510
8
Octal
117022472
10
Decimal
20718906
12
Duodecimal
6b32136
16
Hexadecimal
13c253a
20
Vigesimal
699h56
36
Base36
cc2t6
md5
ad7804be05a9adeee44688e6a57b0d17
sha1
e32322f5ab5ec63e46021d994823a3af51d6cf74
sha256
d949c583202bee96568e0d5c4b405a76444247bdf1de36dd303917756e6aa668
sha512
7afb40fc195dd0c39434bf8a7a9735979ac668b5589e5e41b31c1e26275bffa2b8a88decf1eb229e60ecf35150324caf0e95f369fd7174dc3a838b34dfa90b53
ripemd-160
2e268a375aadc8052b8c28c2318d17329b3c7dd6
Diameter
41437812
Circumference
130180725.76003
Area
1.348601110017E+15
Volume
3.725538617325E+22
Surface area
5.3944044400679E+15
Circumference
130180725.76003
Perimeter
82875624
Area
429273065836836
Diagonal
29300957.862733
Surface area
2575638395021016
Volume
8.8940682994052E+21
Space diagonal
35886197.869244
Perimeter
62156718
Area
1.8588069008756E+14
Altitude
17943098.934622
Surface area
1.8588069008756E+14
Volume
1.048176001141E+21
Height
9766985.9542444