20831930 is an even 8-digits composite number following 20831929
and preceding 20831931 . In scientific notation, it is written as 2.0831930 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 7087680 positive integers (up to 20831930) that are relatively prime to 20831930.
20831930 has 16 divisors, whose sum is 32387040
The reverse of 20831930 is 03913802
Previous prime number is 139
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million eight hundred thirty-one thousand nine hundred thirty
Scientific notation
2.0831930 × 10^7
Engineering notation
2.0831930 × 10^6
Prime Factorization
2 × 35 × 139 × 2141
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20831930
Product of the distinct prime numbers
The prime factorization of 20831930 is 2 × 35 × 139 × 2141.
Since it has a total of 4 prime factors.
8 , 4 , 55 , 12 , 432 , 37 , 3654 , 8925 , 38930 , 9566 , 450152 , 781625 , 8702686 , 1889897 , 74736658 , 39058896 , 804112242 , 744192246 , 7196610578 , 8818706392
n×2
41663860
n×3
62495790
n×4
83327720
n×5
104159650
n÷2
10415965
n÷3
6943976.6666667
n÷3
5207982.5
n÷5
4166386
n2
433969307524900
n3
9.0404182365072E+21
n4
1.8832935987364E+29
n5
3.9232640418325E+36
2 √n
4564.2009158231
3 √n
275.15442566306
4 √n
67.558870001082
5 √n
29.090146039347
1 , 2 , 35 , 70 , 139 , 278 , 2141 , 4282 , 4865 , 9730 , 74935 , 149870 , 297599 , 595198 , 10415965 , 20831930
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
-20831929
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 20831930 can be divided by 16 positive divisors.
The sum of these divisors (counting 20831930) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011101111010111010
3
Ternary
1110012101000222
4
Quaternary
1033131322322
5
Quinary
20313110210
6
Senary
2022300042
8
Octal
117357272
10
Decimal
20831930
12
Duodecimal
6b87622
16
Hexadecimal
13ddeba
20
Vigesimal
6a3jga
36
Base36
cei0q
md5
3ab53af79db39501875140d0b1a3f29f
sha1
f22d5c6944da8d5dcb6ce37cd1f5fc8c9c3c4fc8
sha256
3d37cbb6153fc18c6933df6061a8853667ff0cd6698a3ffed473c1ef357c89fa
sha512
931a89d18e3b110378c27e4f482e62aaac244d3bf90c5d45a5d65cf1a36f49f560a1b55c609d6a046c3f8099b1261a19dfa093465a2c98679f14e7f116c0384c
ripemd-160
039461893744f35749b542f73bda0bae74d2e074
Diameter
41663860
Circumference
130890876.49619
Area
1.3633547884037E+15
Volume
3.7868415356254E+22
Surface area
5.4534191536147E+15
Circumference
130890876.49619
Perimeter
83327720
Area
433969307524900
Diagonal
29460797.936407
Surface area
2603815845149400
Volume
9.0404182365072E+21
Space diagonal
36081961.179718
Perimeter
62495790
Area
1.8791422238965E+14
Altitude
18040980.589859
Surface area
1.8791422238965E+14
Volume
1.0654235066328E+21
Height
9820265.9788023