20621810 is an even 8-digits composite number following 20621809
and preceding 20621811 . In scientific notation, it is written as 2.0621810 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 7498800 positive integers (up to 20621810) that are relatively prime to 20621810.
20621810 has 16 divisors, whose sum is 40493952
The reverse of 20621810 is 01812602
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million six hundred twenty-one thousand eight hundred ten
Scientific notation
2.0621810 × 10^7
Engineering notation
2.0621810 × 10^6
Prime Factorization
2 × 5 × 11 × 187471
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20621810
Product of the distinct prime numbers
The prime factorization of 20621810 is 2 × 5 × 11 × 187471.
Since it has a total of 4 prime factors.
9 , 1 , 26 , 7 , 780 , 757 , 99 , 9657 , 37387 , 58732 , 632814 , 833946 , 4212236 , 231506 , 18543091 , 12402033 , 984904867 , 111469649 , 1004389707 , 103807829
n×2
41243620
n×3
61865430
n×4
82487240
n×5
103109050
n÷2
10310905
n÷3
6873936.6666667
n÷3
5155452.5
n÷5
4124362
n2
425259047676100
n3
8.7696112819575E+21
n4
1.8084525763038E+29
n5
3.7293565422548E+36
2 √n
4541.1243101241
3 √n
274.2261882802
4 √n
67.387864709635
5 √n
29.031224635325
1 , 2 , 5 , 10 , 11 , 22 , 55 , 110 , 187471 , 374942 , 937355 , 1874710 , 2062181 , 4124362 , 10310905 , 20621810
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
-20621809
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 20621810 can be divided by 16 positive divisors.
The sum of these divisors (counting 20621810) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110101010100111110010
3
Ternary
1102210200210202
4
Quaternary
1032222213302
5
Quinary
20234344220
6
Senary
2013555202
8
Octal
116524762
10
Decimal
20621810
12
Duodecimal
6aa5b02
16
Hexadecimal
13aa9f2
20
Vigesimal
68heaa
36
Base36
c9zw2
md5
669a18892e0edd93f688eb3f89175366
sha1
00aa3112a4b2d6dfabbae039b8cbf6bde6e94481
sha256
d4074db156a583478f77398a0a3f3b685deff2f451b3c8deab2a7991dbe58573
sha512
4259414b35b5ae4428804ba0918936dffbc3ca1ac473c1113c4b8c10dcfd69e92f5e506221d6100766f2960ea5750d5891f8425fc053071307af3f23dcf775e0
ripemd-160
214364ce2d93451b9e5b3a66d968030464074879
Diameter
41243620
Circumference
129570653.59945
Area
1.3359907000518E+15
Volume
3.6734061837648E+22
Surface area
5.3439628002073E+15
Circumference
129570653.59945
Perimeter
82487240
Area
425259047676100
Diagonal
29163643.382681
Surface area
2551554286056600
Volume
8.7696112819575E+21
Space diagonal
35718022.664032
Perimeter
61865430
Area
1.8414256923834E+14
Altitude
17859011.332016
Surface area
1.8414256923834E+14
Volume
1.0335086009737E+21
Height
9721214.4608937