20688743 is an odd 8-digits composite number following 20688742
and preceding 20688744 . In scientific notation, it is written as 2.0688743 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20583528 positive integers (up to 20688743) that are relatively prime to 20688743.
20688743 has 4 divisors, whose sum is 20793960
The reverse of 20688743 is 34788602
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred eighty-eight thousand seven hundred forty-three
Scientific notation
2.0688743 × 10^7
Engineering notation
2.0688743 × 10^6
Prime Factorization
197 × 105019
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20688743
Product of the distinct prime numbers
The prime factorization of 20688743 is 197 × 105019.
Since it has a total of 2 prime factors.
10 , 7 , 88 , 93 , 943 , 637 , 2258 , 1195 , 84894 , 70014 , 199988 , 528348 , 5120665 , 4375086 , 77737657 , 90853830 , 836731664 , 960408607 , 4310845254 , 5158543589
n×2
41377486
n×3
62066229
n×4
82754972
n×5
103443715
n÷2
10344371.5
n÷3
6896247.6666667
n÷3
5172185.75
n÷5
4137748.6
n2
428024086920049
n3
8.8552803320986E+21
n4
1.8320461898374E+29
n5
3.7902732785676E+36
2 √n
4548.4879905305
3 √n
274.52255668689
4 √n
67.442479125033
5 √n
29.050045767725
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20688742
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20688743 can be divided by 4 positive divisors.
The sum of these divisors (counting 20688743) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010111101100111
3
Ternary
1102221002121202
4
Quaternary
1032322331213
5
Quinary
20244014433
6
Senary
2015233115
8
Octal
116727547
10
Decimal
20688743
12
Duodecimal
6b1879b
16
Hexadecimal
13baf67
20
Vigesimal
6961h3
36
Base36
cbfjb
md5
b2be9462c092375d244c2d35278d69ae
sha1
19ac660c00c767f0ad37835a3f38b04369276a56
sha256
9f4ff3a318fa9e03fb746efacb540606b7e298ba21fe513a2647cee4404b0a61
sha512
465c52864c6eaccc5f5a8858ed96971dce8edc380412a1f378b28f99fc8bf9086712a1810956ed636648523cccd2db103013cfb1f86a65187b113479b0b8def7
ripemd-160
2a2454936a6842bae263b7a2915e23279d7e0994
Diameter
41377486
Circumference
129991206.04161
Area
1.3446773270275E+15
Volume
3.7092911515732E+22
Surface area
5.37870930811E+15
Circumference
129991206.04161
Perimeter
82754972
Area
428024086920049
Diagonal
29258300.939051
Surface area
2568144521520294
Volume
8.8552803320986E+21
Space diagonal
35833954.020735
Perimeter
62066229
Area
1.853398663522E+14
Altitude
17916977.010367
Surface area
1.853398663522E+14
Volume
1.0436047953558E+21
Height
9752766.9796838