20990129 is an odd 8-digits composite number following 20990128
and preceding 20990130 . In scientific notation, it is written as 2.0990129 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20968740 positive integers (up to 20990129) that are relatively prime to 20990129.
20990129 has 4 divisors, whose sum is 21011520
The reverse of 20990129 is 92109902
Previous prime number is 1031
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred ninety thousand one hundred twenty-nine
Scientific notation
2.0990129 × 10^7
Engineering notation
2.0990129 × 10^6
Prime Factorization
1031 × 20359
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20990129
Product of the distinct prime numbers
The prime factorization of 20990129 is 1031 × 20359.
Since it has a total of 2 prime factors.
3 , 9 , 33 , 51 , 290 , 14 , 4505 , 976 , 25630 , 84215 , 619501 , 731469 , 6160906 , 1767564 , 95715292 , 70552341 , 973362169 , 996031002 , 6896371665 , 7063532182
n×2
41980258
n×3
62970387
n×4
83960516
n×5
104950645
n÷2
10495064.5
n÷3
6996709.6666667
n÷3
5247532.25
n÷5
4198025.8
n2
440585515436641
n3
9.2479468045466E+21
n4
1.9411559641257E+29
n5
4.0745114096118E+36
2 √n
4581.4985539668
3 √n
275.84918333867
4 √n
67.686767938548
5 √n
29.134194921259
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
-20990128
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 20990129 can be divided by 4 positive divisors.
The sum of these divisors (counting 20990129) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100100010110001
3
Ternary
1110111102001012
4
Quaternary
1100010202301
5
Quinary
20333141004
6
Senary
2025520305
8
Octal
120044261
10
Decimal
20990129
12
Duodecimal
7043095
16
Hexadecimal
14048b1
20
Vigesimal
6b3f69
36
Base36
chw35
md5
a69d1e4425a2337202150880a078cc3e
sha1
adda8461c656e4d8aaa99fc8c7fe27067f0670e9
sha256
cb4601b32d1d4006ed6e00fcc58a618a87a2206fac89a3b7a6534f90cda602e9
sha512
52265c912366818b3ede56095683b8540a8fb7ce562d4bdb6ddaeaf90b11fcbfca3dff0984177d4c50df2c37c50cae2837fd69f323b578865242ef0719cb5108
ripemd-160
14bde208f6fd06837825e52272927a43b7afb66a
Diameter
41980258
Circumference
131884870.1286
Area
1.3841402185738E+15
Volume
3.873770898927E+22
Surface area
5.5365608742953E+15
Circumference
131884870.1286
Perimeter
83960516
Area
440585515436641
Diagonal
29684525.107761
Surface area
2643513092619846
Volume
9.2479468045466E+21
Space diagonal
36355969.885425
Perimeter
62970387
Area
1.907791244538E+14
Altitude
18177984.942712
Surface area
1.907791244538E+14
Volume
1.0898809829246E+21
Height
9894841.7025869