20221581 is an odd 8-digits composite number following 20221580
and preceding 20221582 . In scientific notation, it is written as 2.0221581 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 13176240 positive integers (up to 20221581) that are relatively prime to 20221581.
20221581 has 16 divisors, whose sum is 27578880
The reverse of 20221581 is 18512202
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million two hundred twenty-one thousand five hundred eighty-one
Scientific notation
2.0221581 × 10^7
Engineering notation
2.0221581 × 10^6
Prime Factorization
3 × 71 × 139 × 683
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20221581
Product of the distinct prime numbers
The prime factorization of 20221581 is 3 × 71 × 139 × 683.
Since it has a total of 4 prime factors.
5 , 1 , 32 , 33 , 525 , 960 , 5035 , 6816 , 72640 , 72589 , 562365 , 173796 , 6954590 , 7901800 , 99696168 , 24394639 , 32690204 , 56088802 , 3306350753 , 1315390906
n×2
40443162
n×3
60664743
n×4
80886324
n×5
101107905
n÷2
10110790.5
n÷3
6740527
n÷3
5055395.25
n÷5
4044316.2
n2
408912338139561
n3
8.2688539675885E+21
n4
1.6720930028276E+29
n5
3.3812364096212E+36
2 √n
4496.8412246821
3 √n
272.4405212047
4 √n
67.058491070722
5 √n
28.917651629157
1 , 3 , 71 , 139 , 213 , 417 , 683 , 2049 , 9869 , 29607 , 48493 , 94937 , 145479 , 284811 , 6740527 , 20221581
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
-20221580
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 20221581 can be divided by 16 positive divisors.
The sum of these divisors (counting 20221581) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101001000111010001101
3
Ternary
1102001100210110
4
Quaternary
1031020322031
5
Quinary
20134042311
6
Senary
2001230233
8
Octal
115107215
10
Decimal
20221581
12
Duodecimal
6932379
16
Hexadecimal
1348e8d
20
Vigesimal
667dj1
36
Base36
c1f2l
md5
f73d28248ecef236e438b251c753c46d
sha1
68f0c6657435bc923dc4bb1ca6d23e60d4c11557
sha256
6385cd726d1da87989168ab1552b2b53bfc091e6b93e508f05fdb7bca04915a6
sha512
4e6a3fcb5eca35175ddd9141c2385287cbabffbc5202c8e19160f70d873c66c1f21201974f7b4770edd0fdd4920f9e212704ae1251cba1acd7aa75871bf547ee
ripemd-160
a01f9e21373d331d96a6f37f89643b600a0a09ae
Diameter
40443162
Circumference
127055940.62714
Area
1.2846359974615E+15
Volume
3.4636494504244E+22
Surface area
5.1385439898459E+15
Circumference
127055940.62714
Perimeter
80886324
Area
408912338139561
Diagonal
28597634.102826
Surface area
2453474028837366
Volume
8.2688539675885E+21
Space diagonal
35024805.701369
Perimeter
60664743
Area
1.7706423637488E+14
Altitude
17512402.850685
Surface area
1.7706423637488E+14
Volume
9.7449378552052E+20
Height
9532544.700942