20689621 is an odd 8-digits prime number following 20689620
and preceding 20689622 . In scientific notation, it is written as 2.0689621 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 20689620 positive integers (up to 20689621) that are relatively prime to 20689621.
20689621 has 2 divisors, whose sum is 20689622
The reverse of 20689621 is 12698602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred eighty-nine thousand six hundred twenty-one
Scientific notation
2.0689621 × 10^7
Engineering notation
2.0689621 × 10^6
Prime Factorization
20689621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20689621
Product of the distinct prime numbers
The prime factorization of 20689621 is 20689621.
Since it has a total of 1 prime factors.
5 , 8 , 66 , 55 , 705 , 898 , 687 , 7735 , 86903 , 53818 , 321492 , 190647 , 2487478 , 3450473 , 1682182 , 30535682 , 675388592 , 993134621 , 8345615650 , 4168700812
n×2
41379242
n×3
62068863
n×4
82758484
n×5
103448105
n÷2
10344810.5
n÷3
6896540.3333333
n÷3
5172405.25
n÷5
4137924.2
n2
428060417123641
n3
8.85640779539E+21
n4
1.8323572070807E+29
n5
3.7910776151117E+36
2 √n
4548.5845050961
3 √n
274.52644007724
4 √n
67.443194653694
5 √n
29.050292331832
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20689622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10344811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4548.5846150204
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999033332
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20689621 can be divided by 2 positive divisors.
The sum of these divisors (counting 20689621) is 20689622, the average is 10344811.
Base
System
Value
2
Binary
1001110111011001011010101
3
Ternary
1102221010211021
4
Quaternary
1032323023111
5
Quinary
20244031441
6
Senary
2015241141
8
Octal
116731325
10
Decimal
20689621
12
Duodecimal
6b191b1
16
Hexadecimal
13bb2d5
20
Vigesimal
696411
36
Base36
cbg7p
md5
aacb0cc252ed1aaebab9b1e4d2af23e3
sha1
04b936a3e5b878bccb6fbe8fcfa3af17e865c775
sha256
38c4172a08415c9e11a15e1a19e4941f41b79b24913e53c5698b63b6b9f3dfc7
sha512
b8758e0e4048befc564529343b6668c00b5cb5c4065cff6d0e8271d15715c726183eaf285c479e41d9e7a47b5bdac458f3ca6c2db0e05b17f1b93920c38224ff
ripemd-160
0fe228cd5ecf2c375a045207533857c2c14eab69
Diameter
41379242
Circumference
129996722.67831
Area
1.3447914617282E+15
Volume
3.7097634222924E+22
Surface area
5.3791658469129E+15
Circumference
129996722.67831
Perimeter
82758484
Area
428060417123641
Diagonal
29259542.618559
Surface area
2568362502741846
Volume
8.85640779539E+21
Space diagonal
35835474.761344
Perimeter
62068863
Area
1.8535559779182E+14
Altitude
17917737.380672
Surface area
1.8535559779182E+14
Volume
1.043737668179E+21
Height
9753180.8728531