20921636 is an even 8-digits composite number following 20921635
and preceding 20921637 . In scientific notation, it is written as 2.0921636 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 10283400 positive integers (up to 20921636) that are relatively prime to 20921636.
20921636 has 12 divisors, whose sum is 37233840
The reverse of 20921636 is 63612902
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred twenty-one thousand six hundred thirty-six
Scientific notation
2.0921636 × 10^7
Engineering notation
2.0921636 × 10^6
Prime Factorization
2 × 2 × 59 × 88651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10460818
Product of the distinct prime numbers
The prime factorization of 20921636 is 2 × 2 × 59 × 88651.
Since it has a total of 4 prime factors.
5 , 7 , 42 , 43 , 254 , 621 , 3434 , 8151 , 22678 , 99410 , 319861 , 297122 , 4352421 , 326385 , 65269571 , 98560908 , 165925015 , 96158733 , 3531647411 , 1507438990
n×2
41843272
n×3
62764908
n×4
83686544
n×5
104608180
n÷2
10460818
n÷3
6973878.6666667
n÷3
5230409
n÷5
4184327.2
n2
437714852916496
n3
9.1577108245125E+21
n4
1.9159429246371E+29
n5
4.0084660466033E+36
2 √n
4574.0174901283
3 √n
275.54881475109
4 √n
67.631482980402
5 √n
29.11515646638
1 , 2 , 4 , 59 , 118 , 236 , 88651 , 177302 , 354604 , 5230409 , 10460818 , 20921636
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921635
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921636 can be divided by 12 positive divisors.
The sum of these divisors (counting 20921636) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111110011110100100100
3
Ternary
1110100221002102
4
Quaternary
1033303310210
5
Quinary
20323443021
6
Senary
2024231232
8
Octal
117636444
10
Decimal
20921636
12
Duodecimal
700b518
16
Hexadecimal
13f3d24
20
Vigesimal
6af41g
36
Base36
cgf8k
md5
41728f11b1164516996cb1bafb40c014
sha1
3ae6614045397492bea06aa7a3733913ac5f8a49
sha256
144db125b3a7569ea51b7b37fa4903559fa31c46afc08c220b0e505c0243b938
sha512
30cce12b4aa4bbe351d041dbf5de3d2e299d3738308ffa908fe59941291431b37873437a538754ff6ddec26df89b91092daa2e74ba7574adba7ebae4d0ef9578
ripemd-160
827443a7377fd2887b1d22ccd6262cf42e2085a8
Diameter
41843272
Circumference
131454515.91736
Area
1.3751217662896E+15
Volume
3.8359729399984E+22
Surface area
5.5004870651584E+15
Circumference
131454515.91736
Perimeter
83686544
Area
437714852916496
Diagonal
29587661.378233
Surface area
2626289117498976
Volume
9.1577108245125E+21
Space diagonal
36237336.529462
Perimeter
62764908
Area
1.8953609111973E+14
Altitude
18118668.264731
Surface area
1.8953609111973E+14
Volume
1.079246570693E+21
Height
9862553.7927444