20921669 is an odd 8-digits composite number following 20921668
and preceding 20921670 . In scientific notation, it is written as 2.0921669 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20604816 positive integers (up to 20921669) that are relatively prime to 20921669.
20921669 has 4 divisors, whose sum is 21013260
The reverse of 20921669 is 96612902
Previous prime number is 91361
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred twenty-one thousand six hundred sixty-nine
Scientific notation
2.0921669 × 10^7
Engineering notation
2.0921669 × 10^6
Prime Factorization
91361 × 229
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921669
Product of the distinct prime numbers
The prime factorization of 20921669 is 91361 × 229.
Since it has a total of 2 prime factors.
3 , 7 , 62 , 15 , 862 , 61 , 4947 , 2864 , 87658 , 92669 , 674949 , 12571 , 2378153 , 1357124 , 19890446 , 78933077 , 40743348 , 465200671 , 6996671025 , 4961854616
n×2
41843338
n×3
62765007
n×4
83686676
n×5
104608345
n÷2
10460834.5
n÷3
6973889.6666667
n÷3
5230417.25
n÷5
4184333.8
n2
437716233745561
n3
9.1577541583513E+21
n4
1.915955012844E+29
n5
4.0084976597613E+36
2 √n
4574.021097459
3 √n
275.54895962672
4 √n
67.631509649416
5 √n
29.115165651126
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
-20921668
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 20921669 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921669) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011110101000101
3
Ternary
1110100221010122
4
Quaternary
1033303311011
5
Quinary
20323443134
6
Senary
2024231325
8
Octal
117636505
10
Decimal
20921669
12
Duodecimal
700b545
16
Hexadecimal
13f3d45
20
Vigesimal
6af439
36
Base36
cgf9h
md5
60d7703ff21c39ea2e1ccf4970599570
sha1
21221e3e3a481aa098029c22c042b76cf05fedd8
sha256
28e2e15729e19bdc3078bf666e34a84ee1e9759f727401d5d5444a7ed98ebac6
sha512
709ad733a2cd014b766bb6c670637d41de9a1d5c92f392e8094752dcf76465fcb60f5cda04190305b11128e3588784a90cf446227e822e5e064000e975e1c07f
ripemd-160
c3b9747f1169d2338f7ca4bc1878cebc45b660f8
Diameter
41843338
Circumference
131454723.26247
Area
1.375126104292E+15
Volume
3.8359910916344E+22
Surface area
5.5005044171682E+15
Circumference
131454723.26247
Perimeter
83686676
Area
437716233745561
Diagonal
29587708.047281
Surface area
2626297402473366
Volume
9.1577541583513E+21
Space diagonal
36237393.687139
Perimeter
62765007
Area
1.8953668903625E+14
Altitude
18118696.843569
Surface area
1.8953668903625E+14
Volume
1.0792516776349E+21
Height
9862569.3490936