20661831 is an odd 8-digits composite number following 20661830
and preceding 20661832 . In scientific notation, it is written as 2.0661831 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13739544 positive integers (up to 20661831) that are relatively prime to 20661831.
20661831 has 16 divisors, whose sum is 30688000
The reverse of 20661831 is 13816602
Previous prime number is 547
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million six hundred sixty-one thousand eight hundred thirty-one
Scientific notation
2.0661831 × 10^7
Engineering notation
2.0661831 × 10^6
Prime Factorization
9 × 3 × 547 × 1399
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20661831
Product of the distinct prime numbers
The prime factorization of 20661831 is 9 × 3 × 547 × 1399.
Since it has a total of 4 prime factors.
5 , 10 , 59 , 49 , 877 , 523 , 1876 , 9089 , 25468 , 12115 , 855471 , 970914 , 863658 , 1364799 , 79166189 , 81927224 , 342508437 , 109659318 , 4155548988 , 197093802
n×2
41323662
n×3
61985493
n×4
82647324
n×5
103309155
n÷2
10330915.5
n÷3
6887277
n÷3
5165457.75
n÷5
4132366.2
n2
426911260272561
n3
8.8207683117487E+21
n4
1.8225322414751E+29
n5
3.7656853165409E+36
2 √n
4545.5286821227
3 √n
274.40347168838
4 √n
67.420536056328
5 √n
29.042484148981
1 , 3 , 9 , 27 , 547 , 1399 , 1641 , 4197 , 4923 , 12591 , 14769 , 37773 , 765253 , 2295759 , 6887277 , 20661831
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20661830
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20661831 can be divided by 16 positive divisors.
The sum of these divisors (counting 20661831) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110110100011001000111
3
Ternary
1102212201201000
4
Quaternary
1032310121013
5
Quinary
20242134311
6
Senary
2014504343
8
Octal
116643107
10
Decimal
20661831
12
Duodecimal
6b050b3
16
Hexadecimal
13b4647
20
Vigesimal
692ebb
36
Base36
caurr
md5
1968e2653443c44f030dd1f4612a8fc5
sha1
134d4faf26bc42bad10df13358e872cc4cb70e08
sha256
01335684979736a9c212da4708d7e34443ef199f3b60542215add66a88f41362
sha512
94daf4fca9bc1c4103acd34ff73d3f2ee4c58e6e760318dcb20cd0ac5245dcfe8e1015ec74cd9a4d9ba615c27e7410d7b1252e5ddda62f7fbc52fa01ee79cad7
ripemd-160
604fba37362f4b0415ef1df0d16d23091dcbb484
Diameter
41323662
Circumference
129822112.95863
Area
1.341181279007E+15
Volume
3.6948347902943E+22
Surface area
5.3647251160282E+15
Circumference
129822112.95863
Perimeter
82647324
Area
426911260272561
Diagonal
29220241.623661
Surface area
2561467561635366
Volume
8.8207683117487E+21
Space diagonal
35787341.069402
Perimeter
61985493
Area
1.8485799827883E+14
Altitude
17893670.534701
Surface area
1.8485799827883E+14
Volume
1.0395375147521E+21
Height
9740080.5412203