20129809 is an odd 8-digits composite number following 20129808
and preceding 20129810 . In scientific notation, it is written as 2.0129809 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 17233776 positive integers (up to 20129809) that are relatively prime to 20129809.
20129809 has 8 divisors, whose sum is 23032640
The reverse of 20129809 is 90892102
Previous prime number is 1669
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred twenty-nine thousand eight hundred nine
Scientific notation
2.0129809 × 10^7
Engineering notation
2.0129809 × 10^6
Prime Factorization
7 × 1669 × 1723
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20129809
Product of the distinct prime numbers
The prime factorization of 20129809 is 7 × 1669 × 1723.
Since it has a total of 3 prime factors.
4 , 1 , 8 , 43 , 972 , 391 , 8833 , 9536 , 94976 , 8247 , 95322 , 738804 , 5829097 , 5256797 , 85489948 , 17596405 , 486895280 , 432835906 , 7096612007 , 5652353912
n×2
40259618
n×3
60389427
n×4
80519236
n×5
100649045
n÷2
10064904.5
n÷3
6709936.3333333
n÷3
5032452.25
n÷5
4025961.8
n2
405209210376481
n3
8.1567840099194E+21
n4
1.6419450417393E+29
n5
3.3052040078709E+36
2 √n
4486.6255694007
3 √n
272.02775542172
4 √n
66.982278024868
5 √n
28.891356341383
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
-20129808
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 20129809 can be divided by 8 positive divisors.
The sum of these divisors (counting 20129809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010100000010001
3
Ternary
1101212200220111
4
Quaternary
1030302200101
5
Quinary
20123123214
6
Senary
1555241321
8
Octal
114624021
10
Decimal
20129809
12
Duodecimal
68a9241
16
Hexadecimal
1332811
20
Vigesimal
65g4a9
36
Base36
bzg9d
md5
01c47c5ed123de2ada459431b02a0582
sha1
eb8317c5d125c500f754243316c373aad87db6b8
sha256
8e7bd5656bb8401278a6d89ee75fe9c5da6e33bf5e90690bd05b24697e6411af
sha512
e5a0ee427bbf984d37d72f2458675517ba21997c7afd2e1b11a3efba36230f5c0dc2ac893337a7782d166a012e35be93177bee31073c075136c04b6a3fc7d274
ripemd-160
d23892ec49424c4558fdbbc6c4e2d408dd3650b2
Diameter
40259618
Circumference
126479320.14513
Area
1.2730022784857E+15
Volume
3.4167056963309E+22
Surface area
5.0920091139427E+15
Circumference
126479320.14513
Perimeter
80519236
Area
405209210376481
Diagonal
28467848.89578
Surface area
2431255262258886
Volume
8.1567840099194E+21
Space diagonal
34865851.934657
Perimeter
60389427
Area
1.7546073501673E+14
Altitude
17432925.967329
Surface area
1.7546073501673E+14
Volume
9.61286214348E+20
Height
9489282.96526