20129420 is an even 8-digits composite number following 20129419
and preceding 20129421 . In scientific notation, it is written as 2.0129420 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors.
There are 8051760 positive integers (up to 20129420) that are relatively prime to 20129420.
20129420 has 12 divisors, whose sum is 42271824
The reverse of 20129420 is 02492102
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty-nine thousand four hundred twenty
Scientific notation
2.0129420 × 10^7
Engineering notation
2.0129420 × 10^6
Prime Factorization
2 × 2 × 5 × 1006471
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10064710
Product of the distinct prime numbers
The prime factorization of 20129420 is 2 × 2 × 5 × 1006471.
Since it has a total of 4 prime factors.
6 , 6 , 62 , 75 , 582 , 862 , 7939 , 6151 , 84968 , 19730 , 663862 , 73562 , 4202768 , 3221431 , 27944582 , 90856874 , 25926680 , 363080131 , 7943524351 , 7266098459
n×2
40258840
n×3
60388260
n×4
80517680
n×5
100647100
n÷2
10064710
n÷3
6709806.6666667
n÷3
5032355
n÷5
4025884
n2
405193549536400
n3
8.156311139909E+21
n4
1.6418181258591E+29
n5
3.304884661903E+36
2 √n
4486.5822181255
3 √n
272.02600313686
4 √n
66.981954421512
5 √n
28.891244677884
1 , 2 , 4 , 5 , 10 , 20 , 1006471 , 2012942 , 4025884 , 5032355 , 10064710 , 20129420
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20129419
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20129420 can be divided by 12 positive divisors.
The sum of these divisors (counting 20129420) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110010011010001100
3
Ternary
1101212200101002
4
Quaternary
1030302122030
5
Quinary
20123120140
6
Senary
1555235432
8
Octal
114623214
10
Decimal
20129420
12
Duodecimal
68a8b78
16
Hexadecimal
133268c
20
Vigesimal
65g3b0
36
Base36
bzfyk
md5
0d6f062192918c033873069a041c0070
sha1
e3792e2a6a84a7590ec5aa629843a0cb42fb6755
sha256
aaa20776529d551a480afd2ac4ebdd2f8357c458484cb4a87b2fca7b213e898a
sha512
aae6eeaa748bddea61dc2cb3a991700edd7693fc5838057834ef89d5dfc8787abf6dd648e951f733b10d31ff0ba451f772d76f5ab4030f443d43034ad4f4982c
ripemd-160
e372e8fb797e554a0720190381cca8d0d12ce153
Diameter
40258840
Circumference
126476875.98605
Area
1.2729530785055E+15
Volume
3.4165076210041E+22
Surface area
5.0918123140221E+15
Circumference
126476875.98605
Perimeter
80517680
Area
405193549536400
Diagonal
28467298.766704
Surface area
2431161297218400
Volume
8.156311139909E+21
Space diagonal
34865178.166893
Perimeter
60388260
Area
1.7545395367406E+14
Altitude
17432589.083447
Surface area
1.7545395367406E+14
Volume
9.6123048608284E+20
Height
9489099.5889014