20406721 is an odd 8-digits composite number following 20406720
and preceding 20406722 . In scientific notation, it is written as 2.0406721 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 19628928 positive integers (up to 20406721) that are relatively prime to 20406721.
20406721 has 8 divisors, whose sum is 21197160
The reverse of 20406721 is 12760402
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million four hundred six thousand seven hundred twenty-one
Scientific notation
2.0406721 × 10^7
Engineering notation
2.0406721 × 10^6
Prime Factorization
37 × 89 × 6197
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20406721
Product of the distinct prime numbers
The prime factorization of 20406721 is 37 × 89 × 6197.
Since it has a total of 3 prime factors.
5 , 1 , 45 , 17 , 461 , 358 , 6645 , 773 , 63119 , 53334 , 745811 , 418982 , 9632387 , 8833636 , 34421555 , 45359191 , 2560651 , 980588831 , 561246403 , 420153033
n×2
40813442
n×3
61220163
n×4
81626884
n×5
102033605
n÷2
10203360.5
n÷3
6802240.3333333
n÷3
5101680.25
n÷5
4081344.2
n2
416434261971841
n3
8.4980577989003E+21
n4
1.7341749454403E+29
n5
3.5388824276791E+36
2 √n
4517.3798821883
3 √n
273.26944554156
4 √n
67.211456480189
5 √n
28.970410255373
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
-20406720
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 20406721 can be divided by 8 positive divisors.
The sum of these divisors (counting 20406721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110000111000001
3
Ternary
1102101202202111
4
Quaternary
1031312013001
5
Quinary
20211003341
6
Senary
2005215321
8
Octal
115660701
10
Decimal
20406721
12
Duodecimal
6a01541
16
Hexadecimal
13761c1
20
Vigesimal
67agg1
36
Base36
c5dxd
md5
5624ef63d2bd47d33ca7d15980ca459a
sha1
da37d2bececd55cf15a0e1dc0c1b76968098f55e
sha256
f03f85f8dfcf23bc678de6e6f14baa01bf02d1c774ab20772391d6030e246ae5
sha512
92a21ea60d95f2fad25204451f6056093f928cc38fcc054e3fd520d42eabad0b7d562b685897892292b5193f0ec464b03e0c8520a2f5e21104429a826bc3af00
ripemd-160
a0997787ffe5d2e5300488be61155ba343844fd0
Diameter
40813442
Circumference
128219209.55491
Area
1.3082668181138E+15
Volume
3.5596581267742E+22
Surface area
5.2330672724553E+15
Circumference
128219209.55491
Perimeter
81626884
Area
416434261971841
Diagonal
28859461.601764
Surface area
2498605571831046
Volume
8.4980577989003E+21
Space diagonal
35345477.587883
Perimeter
61220163
Area
1.8032132493692E+14
Altitude
17672738.793941
Surface area
1.8032132493692E+14
Volume
1.0015057160863E+21
Height
9619820.5339213