20921941 is an odd 8-digits composite number following 20921940
and preceding 20921942 . In scientific notation, it is written as 2.0921941 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20896672 positive integers (up to 20921941) that are relatively prime to 20921941.
20921941 has 4 divisors, whose sum is 20947212
The reverse of 20921941 is 14912902
Previous prime number is 857
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred twenty-one thousand nine hundred forty-one
Scientific notation
2.0921941 × 10^7
Engineering notation
2.0921941 × 10^6
Prime Factorization
857 × 24413
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921941
Product of the distinct prime numbers
The prime factorization of 20921941 is 857 × 24413.
Since it has a total of 2 prime factors.
4 , 1 , 12 , 15 , 616 , 470 , 3983 , 3715 , 94879 , 17235 , 155262 , 185617 , 5180531 , 8321052 , 16862182 , 68038258 , 261055922 , 985643107 , 6464696364 , 7421675221
n×2
41843882
n×3
62765823
n×4
83687764
n×5
104609705
n÷2
10460970.5
n÷3
6973980.3333333
n÷3
5230485.25
n÷5
4184388.2
n2
437727615207481
n3
9.1581113394416E+21
n4
1.9160546511523E+29
n5
4.0087582364184E+36
2 √n
4574.0508305002
3 √n
275.55015374739
4 √n
67.631729465542
5 √n
29.115241355257
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
-20921940
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 20921941 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921941) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011111001010101
3
Ternary
1110100221111201
4
Quaternary
1033303321111
5
Quinary
20324000231
6
Senary
2024232501
8
Octal
117637125
10
Decimal
20921941
12
Duodecimal
700b731
16
Hexadecimal
13f3e55
20
Vigesimal
6af4h1
36
Base36
cgfh1
md5
40e18d91f9235be4ae2d794fd0f12049
sha1
ef4d9e58d56a915cb940a6407d75ae0115e09f9e
sha256
8c8df6a558c80d14bc46ce9182bb228257b0833c129d7a952feb288da1582f80
sha512
8fff01e6fb9b22e8f8a6ab66b8b878817b1dd9cc2ba999aea6190a617cd1eaa6cd3ff5bb2a7995a365c79bc9b7885a78fb3d97b432a387c138fc83dd58c6e8ff
ripemd-160
e57580a805cdeb86e4f58d3ced6338ae01c5517a
Diameter
41843882
Circumference
131456432.28888
Area
1.3751618602092E+15
Volume
3.8361407072996E+22
Surface area
5.5006474408368E+15
Circumference
131456432.28888
Perimeter
83687764
Area
437727615207481
Diagonal
29588092.71337
Surface area
2626365691244886
Volume
9.1581113394416E+21
Space diagonal
36237864.804958
Perimeter
62765823
Area
1.8954161735383E+14
Altitude
18118932.402479
Surface area
1.8954161735383E+14
Volume
1.0792937718301E+21
Height
9862697.5711232