20026981 is an odd 8-digits composite number following 20026980
and preceding 20026982 . In scientific notation, it is written as 2.0026981 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 18351792 positive integers (up to 20026981) that are relatively prime to 20026981.
20026981 has 8 divisors, whose sum is 21724640
The reverse of 20026981 is 18962002
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million twenty-six thousand nine hundred eighty-one
Scientific notation
2.0026981 × 10^7
Engineering notation
2.0026981 × 10^6
Prime Factorization
13 × 139 × 11083
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20026981
Product of the distinct prime numbers
The prime factorization of 20026981 is 13 × 139 × 11083.
Since it has a total of 3 prime factors.
5 , 5 , 69 , 54 , 131 , 672 , 5401 , 5014 , 84707 , 4500 , 783547 , 475193 , 4500924 , 8342935 , 89290990 , 86918038 , 468456255 , 558546282 , 3197562073 , 7265782771
n×2
40053962
n×3
60080943
n×4
80107924
n×5
100134905
n÷2
10013490.5
n÷3
6675660.3333333
n÷3
5006745.25
n÷5
4005396.2
n2
401079967974361
n3
8.0324208981031E+21
n4
1.6086514071031E+29
n5
3.2216431165678E+36
2 √n
4475.1515058152
3 √n
271.56376964716
4 √n
66.896573199344
5 √n
28.86177901778
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
-20026980
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 20026981 can be divided by 8 positive divisors.
The sum of these divisors (counting 20026981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011001011001100101
3
Ternary
1101200110212001
4
Quaternary
1030121121211
5
Quinary
20111330411
6
Senary
1553125301
8
Octal
114313145
10
Decimal
20026981
12
Duodecimal
6859831
16
Hexadecimal
1319665
20
Vigesimal
653791
36
Base36
bx8x1
md5
645631bf0888f5daa8acb555ec172ddc
sha1
77d572a380c08908899ed4b13e57068aad402e86
sha256
17b87455ae43dbbb96076c178842575ea806d2b09927c53dfb8c039185f11ecc
sha512
fbe5745f272439fdc30877959eaffc8a70531cc86361afbaabd03000200ae2f447b861b7d8ad6ef25461cb223ff559f63e8cedad898a5fe90a5f3aea70f0e4b5
ripemd-160
662a78a030eb87c33e6507983c04be3d3687a00d
Diameter
40053962
Circumference
125833232.76636
Area
1.2600298808903E+15
Volume
3.3646125978696E+22
Surface area
5.0401195235611E+15
Circumference
125833232.76636
Perimeter
80107924
Area
401079967974361
Diagonal
28322428.143588
Surface area
2406479807846166
Volume
8.0324208981031E+21
Space diagonal
34687748.614217
Perimeter
60080943
Area
1.7367272060742E+14
Altitude
17343874.307108
Surface area
1.7367272060742E+14
Volume
9.4662988106554E+20
Height
9440809.3811961