20129921 is an odd 8-digits composite number following 20129920
and preceding 20129922 . In scientific notation, it is written as 2.0129921 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 16239168 positive integers (up to 20129921) that are relatively prime to 20129921.
20129921 has 4 divisors, whose sum is 20299200
The reverse of 20129921 is 12992102
Previous prime number is 119
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred twenty-nine thousand nine hundred twenty-one
Scientific notation
2.0129921 × 10^7
Engineering notation
2.0129921 × 10^6
Prime Factorization
119 × 169159
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20129921
Product of the distinct prime numbers
The prime factorization of 20129921 is 119 × 169159.
Since it has a total of 2 prime factors.
9 , 5 , 41 , 45 , 560 , 468 , 9555 , 8621 , 3594 , 94440 , 125994 , 378426 , 8813763 , 7746538 , 47837434 , 65780551 , 718561763 , 211416978 , 3346836222 , 8934109352
n×2
40259842
n×3
60389763
n×4
80519684
n×5
100649605
n÷2
10064960.5
n÷3
6709973.6666667
n÷3
5032480.25
n÷5
4025984.2
n2
405213719466241
n3
8.1569201609716E+21
n4
1.6419815844367E+29
n5
3.3052959578165E+36
2 √n
4486.6380509241
3 √n
272.02825993143
4 √n
66.982371195144
5 √n
28.891388490964
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
-20129920
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 20129921 can be divided by 4 positive divisors.
The sum of these divisors (counting 20129921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010100010000001
3
Ternary
1101212201001122
4
Quaternary
1030302202001
5
Quinary
20123124141
6
Senary
1555242025
8
Octal
114624201
10
Decimal
20129921
12
Duodecimal
68a9315
16
Hexadecimal
1332881
20
Vigesimal
65g4g1
36
Base36
bzgch
md5
6f45ce28482ad5696c893176642ab800
sha1
a1c7c99b5524c1e63f45bb9cb501064aab2eb4e4
sha256
419aa850be61ec326a09720c08d11ad325a09a7947947726ee0a7c1527496a4b
sha512
e009983028e65e631983ba3825ee2de53c5833206ac71f6bdc1f9fa2a7f64d15591c49d0d7109545ec8aff6f2549a16ef897278f8ec046f94faa59f3d6199b0d
ripemd-160
90d75c4753dd97ea56fd6e2b6386c27df70f72d6
Diameter
40259842
Circumference
126480023.86189
Area
1.2730164442089E+15
Volume
3.4167627271502E+22
Surface area
5.0920657768358E+15
Circumference
126480023.86189
Perimeter
80519684
Area
405213719466241
Diagonal
28468007.287699
Surface area
2431282316797446
Volume
8.1569201609716E+21
Space diagonal
34866045.924348
Perimeter
60389763
Area
1.7546268750987E+14
Altitude
17433022.962174
Surface area
1.7546268750987E+14
Volume
9.6130225990338E+20
Height
9489335.7625663