20621839 is an odd 8-digits composite number following 20621838
and preceding 20621840 . In scientific notation, it is written as 2.0621839 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 17197920 positive integers (up to 20621839) that are relatively prime to 20621839.
20621839 has 8 divisors, whose sum is 24205088
The reverse of 20621839 is 93812602
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred twenty-one thousand eight hundred thirty-nine
Scientific notation
2.0621839 × 10^7
Engineering notation
2.0621839 × 10^6
Prime Factorization
7 × 37 × 79621
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20621839
Product of the distinct prime numbers
The prime factorization of 20621839 is 7 × 37 × 79621.
Since it has a total of 3 prime factors.
9 , 7 , 1 , 1 , 102 , 44 , 5198 , 1109 , 37021 , 9472 , 205082 , 699111 , 4072924 , 6879284 , 89567520 , 1135755 , 83624646 , 696848702 , 6157467530 , 3429123209
n×2
41243678
n×3
61865517
n×4
82487356
n×5
103109195
n÷2
10310919.5
n÷3
6873946.3333333
n÷3
5155459.75
n÷5
4124367.8
n2
425260243741921
n3
8.7696482795467E+21
n4
1.8084627490744E+29
n5
3.7293827648909E+36
2 √n
4541.1275031648
3 √n
274.22631682623
4 √n
67.387888401142
5 √n
29.031232800515
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20621838
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20621839 can be divided by 8 positive divisors.
The sum of these divisors (counting 20621839) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101010101000001111
3
Ternary
1102210200211211
4
Quaternary
1032222220033
5
Quinary
20234344324
6
Senary
2013555251
8
Octal
116525017
10
Decimal
20621839
12
Duodecimal
6aa5b27
16
Hexadecimal
13aaa0f
20
Vigesimal
68hebj
36
Base36
c9zwv
md5
7916431d7a40c04ac2eb4c53ec63c79d
sha1
d2c8e3bd1097db2f6f1a0666b167b335d026bd46
sha256
1953e34abff9aa04b97cc5363320bb1584e441fb15219e1e35dc435bcd4b7cde
sha512
f30f76d0777f4535941ef5f1d5efb67ef3eb47e3119ea3bc6b8673e94491473e36aa5ac138935b4995eda74699291c357535627859c4d7c0bb0a5324d68530f2
ripemd-160
05baf42adccabda346fc561d9dbabd0d4b5167c4
Diameter
41243678
Circumference
129570835.81182
Area
1.3359944576034E+15
Volume
3.6734216812787E+22
Surface area
5.3439778304137E+15
Circumference
129570835.81182
Perimeter
82487356
Area
425260243741921
Diagonal
29163684.394874
Surface area
2551561462451526
Volume
8.7696482795467E+21
Space diagonal
35718072.893505
Perimeter
61865517
Area
1.8414308715003E+14
Altitude
17859036.446753
Surface area
1.8414308715003E+14
Volume
1.0335129611814E+21
Height
9721228.1316248