20921486 is an even 8-digits composite number following 20921485
and preceding 20921487 . In scientific notation, it is written as 2.0921486 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 10154040 positive integers (up to 20921486) that are relatively prime to 20921486.
20921486 has 16 divisors, whose sum is 32313600
The reverse of 20921486 is 68412902
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand four hundred eighty-six
Scientific notation
2.0921486 × 10^7
Engineering notation
2.0921486 × 10^6
Prime Factorization
2 × 47 × 131 × 1699
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921486
Product of the distinct prime numbers
The prime factorization of 20921486 is 2 × 47 × 131 × 1699.
Since it has a total of 4 prime factors.
3 , 7 , 38 , 45 , 282 , 914 , 4428 , 3438 , 2887 , 19310 , 773791 , 21263 , 9032053 , 9159195 , 2825130 , 42351362 , 857559262 , 129469831 , 9560420725 , 8655236665
n×2
41842972
n×3
62764458
n×4
83685944
n×5
104607430
n÷2
10460743
n÷3
6973828.6666667
n÷3
5230371.5
n÷5
4184297.2
n2
437708576448196
n3
9.1575138542409E+21
n4
1.9158879789631E+29
n5
4.0083223529444E+36
2 √n
4574.001093135
3 √n
275.54815622354
4 √n
67.631361757213
5 √n
29.115114717389
1 , 2 , 47 , 94 , 131 , 262 , 1699 , 3398 , 6157 , 12314 , 79853 , 159706 , 222569 , 445138 , 10460743 , 20921486
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
-20921485
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 20921486 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921486) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011110010001110
3
Ternary
1110100220212212
4
Quaternary
1033303302032
5
Quinary
20323441421
6
Senary
2024230422
8
Octal
117636216
10
Decimal
20921486
12
Duodecimal
700b412
16
Hexadecimal
13f3c8e
20
Vigesimal
6af3e6
36
Base36
cgf4e
md5
f3ad80e007d0cbd3cfac13789238f648
sha1
f200fb03900963e3b7203bd94d57bbae2789c525
sha256
833e9c3ce68891385866d27bc8ef3744e807aa67b72fc146fefbb977dd018724
sha512
0a4ec8abe3c85ef3f33eb7ab9fc8a96c76321a5e1683df64b92ddb8a7b4da4be181b74c19a010e9af21d037d3b8678db1de0fc30a80d60928e3513a5856ced47
ripemd-160
814f6ee8ed0ed79a9809b82c07138bdc52cdee4f
Diameter
41842972
Circumference
131453573.43956
Area
1.3751020481829E+15
Volume
3.835890433284E+22
Surface area
5.5004081927316E+15
Circumference
131453573.43956
Perimeter
83685944
Area
437708576448196
Diagonal
29587449.246199
Surface area
2626251458689176
Volume
9.1575138542409E+21
Space diagonal
36237076.721841
Perimeter
62764458
Area
1.8953337332923E+14
Altitude
18118538.36092
Surface area
1.8953337332923E+14
Volume
1.0792233575239E+21
Height
9862483.0820663